Underwater with BIRP not OK on iOS, Would URP work?

[jelmer3000]

Hi
I'm testing the free version of Crest using the built in render pipeline. I noticed that the underwater effect is not working properly on iPhone. Part of the effect seems to be flipped vertically.
I did find this commit, but using that (old?) shader code gave some other errors.

So... Is there a fix for the underwater effect on BIRP?
Or how would URP version behave? Is there a way I could try that, without paying 70 dollars right away?

[magenta404]

Not sure if URP will behave better than BIRP. I removed that code because Metal on macOS was fine. Is this the same issue as #192?