Launching the game on 1.20 gives me an incompatibility error screen saying no version of optifabric is compatible with this mod. Error message displayed below.

Incompatible mod set!
net.fabricmc.loader.impl.FormattedException: Mod resolution encountered an incompatible mod set!
A potential solution has been determined:
- Replace mod 'Do a Barrel Roll' (do_a_barrel_roll) 3.3.2+1.20 with any version that is compatible with:
- optifabric 1.13.25
Unmet dependency listing:
- Mod 'Do a Barrel Roll' (do_a_barrel_roll) 3.3.2+1.20 is incompatible with any version of mod 'OptiFabric' (optifabric), but a matching version is present: 1.13.25!
at net.fabricmc.loader.impl.FormattedException.ofLocalized(FormattedException.java:51)
at net.fabricmc.loader.impl.FabricLoaderImpl.load(FabricLoaderImpl.java:192)
at net.fabricmc.loader.impl.launch.knot.Knot.init(Knot.java:148)
at net.fabricmc.loader.impl.launch.knot.Knot.launch(Knot.java:68)
at net.fabricmc.loader.impl.launch.knot.KnotClient.main(KnotClient.java:23)

This is correct. Optifine breaks this mod in many ways that I haven't been able to diagnose due to its invasive and closed source nature.

Luckily, there's no reason to use Optifine in 2023, as there are many alternatives available to cover features it provides. These alternatives are almost always more compatible with other mods, and open source, making it easy for mod authors to work together to maintain a working game.