As in the title says there is a gap between these two versions, and i can't run an older version of optifine because other mods are incompatable with 1.19.4 yet. Can you give me the downloads to the versions in between 1.13.16 and 1.13.24, please?

There is no in between versions, thats what we have for Optifabric. If it was released, its available. Otherwise, you can try going back through github actions if they go back that far, and work off the commit builds. A lot of mods are incompatible with Optifine, which is the issue. Patching every mod that flags an issue with Optifine is way too much work, and there's already a massive amount of work done in the compat section as it is.

What is the "gap" you said? As my understanding, 1.13.16 and 1.13.24 work with Minecraft from 1.16 until (the newest Minecraft version the mod supported).
By the way, you should expect optifabric might conflict with the untested fabric-loader version, incompatible fabric API version, incompatible optifine version, and so on...

There is no in between versions, thats what we have for Optifabric. If it was released, its available. Otherwise, you can try going back through github actions if they go back that far, and work off the commit builds. A lot of mods are incompatible with Optifine, which is the issue. Patching every mod that flags an issue with Optifine is way too much work, and there's already a massive amount of work done in the compat section as it is.

Bruh, now i wonder how his one youtuber got all mods to be compatable with each other

There is no in between versions, thats what we have for Optifabric. If it was released, its available. Otherwise, you can try going back through github actions if they go back that far, and work off the commit builds. A lot of mods are incompatible with Optifine, which is the issue. Patching every mod that flags an issue with Optifine is way too much work, and there's already a massive amount of work done in the compat section as it is.

Bruh, now i wonder how his one youtuber got all mods to be compatable with each other

No idea. A lot of mods flag incompatibility with Optifabric but it’s actually optifine that’s the main issue, hence why alternates like Sodium / Iris exist. As a mod optifine is just a too invasive with its changes, and that’s what breaks mods. Optifabric is just a compatibility shim of its own in a way to make it work with fabric, since it doesn’t by default. That alone will cause issues. You could try forge I guess, since Optifabric won’t be needed.