[Bug]: Fonts and gtk theme missing after flatpak update

[ArtemChandragupta]

Describe the bug

I am using Hyprland on NixOS and bottles flatpak. After latest update (51.21) bottles app is unable to display fonts and gtk theme:

I reproduced it on two different machines

To Reproduce

1. Install Bottles as flatpak on NixOS with Hyprland

Package

Flatpak from Flathub

Distribution

Nixos unstable

Debugging Information

Official Package: true
Version: '51.21'
DE/WM: null
Display:
    X.org: true
    X.org (port): :0
    Wayland: true
Graphics:
    vendors:
        nvidia:
            vendor: nvidia
            envs:
                __NV_PRIME_RENDER_OFFLOAD: '1'
                __GLX_VENDOR_LIBRARY_NAME: nvidia
                __VK_LAYER_NV_optimus: NVIDIA_only
            icd: /usr/lib/x86_64-linux-gnu/GL/vulkan/icd.d/nvidia_icd.json:/usr/lib/i386-linux-gnu/GL/vulkan/icd.d/nvidia_icd.json
            nvngx_path: /usr/lib/x86_64-linux-gnu/GL/nvidia-575-64/lib/nvidia/wine
    prime:
        integrated: null
        discrete: null
Kernel:
    Type: Linux
    Version: 6.15.3
Disk:
    Total: 16752746496
    Free: 16752570368
RAM:
    MemTotal: 31.2GiB
    MemAvailable: 26.8GiB
Bottles_envs: null

Troubleshooting Logs

>>-  flatpak run com.usebottles.bottles

(process:2): Gdk-WARNING **: 15:37:59.807: Failed to read portal settings: GDBus.Error:org.freedesktop.DBus.Error.UnknownMethod: No such interface “org.freedesktop.portal.Settings” on object at path /org/freedesktop/portal/desktop
15:38:00 (INFO) Launching with URI: None 
15:38:00 (INFO) [Activate] request received. 
15:38:00 (INFO) Bottles Started! 

(bottles:2): Gtk-WARNING **: 15:38:00.272: Creating a portal monitor failed: GDBus.Error:org.freedesktop.DBus.Error.UnknownMethod: No such interface “org.freedesktop.portal.Inhibit” on object at path /org/freedesktop/portal/desktop

(bottles:2): Pango-WARNING **: 15:38:00.275: failed to create cairo scaled font, expect ugly output. the offending font is 'Cantarell Ultra-Bold 19.91'

(bottles:2): Pango-WARNING **: 15:38:00.275: font_face status is: file not found

(bottles:2): Pango-WARNING **: 15:38:00.275: scaled_font status is: file not found

(bottles:2): Pango-WARNING **: 15:38:00.276: failed to create cairo scaled font, expect ugly output. the offending font is 'Cantarell Ultra-Bold 19.91'

(bottles:2): Pango-WARNING **: 15:38:00.276: font_face status is: file not found

(bottles:2): Pango-WARNING **: 15:38:00.276: scaled_font status is: file not found

(bottles:2): Pango-WARNING **: 15:38:00.280: failed to create cairo scaled font, expect ugly output. the offending font is 'Cantarell Bold 11'

(bottles:2): Pango-WARNING **: 15:38:00.280: font_face status is: file not found

(bottles:2): Pango-WARNING **: 15:38:00.280: scaled_font status is: file not found

(bottles:2): Pango-WARNING **: 15:38:00.280: failed to create cairo scaled font, expect ugly output. the offending font is 'Cantarell Bold 11'

(bottles:2): Pango-WARNING **: 15:38:00.280: font_face status is: file not found

(bottles:2): Pango-WARNING **: 15:38:00.280: scaled_font status is: file not found

(bottles:2): Pango-WARNING **: 15:38:00.284: failed to create cairo scaled font, expect ugly output. the offending font is 'Cantarell 11'

(bottles:2): Pango-WARNING **: 15:38:00.284: font_face status is: file not found

(bottles:2): Pango-WARNING **: 15:38:00.284: scaled_font status is: file not found

(bottles:2): Pango-WARNING **: 15:38:00.284: failed to create cairo scaled font, expect ugly output. the offending font is 'Cantarell 11'

(bottles:2): Pango-WARNING **: 15:38:00.284: font_face status is: file not found

(bottles:2): Pango-WARNING **: 15:38:00.284: scaled_font status is: file not found

(bottles:2): Pango-WARNING **: 15:38:00.292: failed to create cairo scaled font, expect ugly output. the offending font is 'Cantarell Ultra-Bold 19.91'

(bottles:2): Pango-WARNING **: 15:38:00.292: font_face status is: file not found

(bottles:2): Pango-WARNING **: 15:38:00.292: scaled_font status is: file not found

(bottles:2): Pango-WARNING **: 15:38:00.294: failed to create cairo scaled font, expect ugly output. the offending font is 'Cantarell Bold 11'

(bottles:2): Pango-WARNING **: 15:38:00.294: font_face status is: file not found

(bottles:2): Pango-WARNING **: 15:38:00.294: scaled_font status is: file not found

(bottles:2): Pango-WARNING **: 15:38:00.303: failed to create cairo scaled font, expect ugly output. the offending font is 'Cantarell Ultra-Bold 19.91'

(bottles:2): Pango-WARNING **: 15:38:00.303: font_face status is: file not found

(bottles:2): Pango-WARNING **: 15:38:00.303: scaled_font status is: file not found

(bottles:2): Pango-WARNING **: 15:38:00.491: failed to create cairo scaled font, expect ugly output. the offending font is 'Cantarell 11'

(bottles:2): Pango-WARNING **: 15:38:00.491: font_face status is: file not found

(bottles:2): Pango-WARNING **: 15:38:00.491: scaled_font status is: file not found

Additional context

The language is English, before the update everything worked for more than a year

[ArtemChandragupta]

Not a bottles issue, but a flatpak on NixOS problems.