Might sound dumb but can I use Shaders?

Until an acceptable alternative is found or developed, Optifine is allowed for versions from 1.0 through 1.15. If Optifine is used: No Fast Math No Clear Water No Dynamic Lighting No Lazy Chunk Loading Render distance must be a value allowed by Vanilla on the Minecraft version you’re playing No disabling fog No shaderpacks No using Optifine zoom No disabling explosion particles No disabling animations

So yeah it is banned