[Feature Request] Add an FOV post effect that "un-stretches" the screen, keeping the wide view

[AbdiAbdiAbdi]

I apoligise in advance for my English.
Hello Earthcomputer, I absolutely Love your work!

Would it be possible for you to add a post effect, like in the "Flex FOV" mod, that makes it easier to play with higher fov values?

I personally always play with FOV ~130, and how the screen stretches in the screen edges doesn't really bother me, but I'd really appreciate it if you added this feature to my currently favorite mod!

I understand that i might be the only person enjoying "IRL-like" view in minecraft, since in real life we can see 180 degrees, but I would genuinely appreciate this addition!

Link to the "Flex FOV" mod: https://www.curseforge.com/minecraft/mc-mods/flex-fov

130 FOV without the mod:

180 degree view with the mod (panini filter, -2 zoom out, 100 FOV):

[AbdiAbdiAbdi]

The thing is, that the mod hasn't been updated in quite a long time, and my tiny brain cannot comprehend the horrors of Java modding