If you’re using the proprietary drivers: Absolutely nothing will change for you.

If you’re using the Nouveau/NVK drivers: Soon the OpenGL driver will be entirely replaced by Zink, which implements OpenGL over Vulkan (think DXVK, but for OpenGL); as the aforementioned driver is in a quite broken state, and nothing short of a complete rewrite can “revive” it.

Sooo… if you’re already able to use NVK, you’ll keep using NVK, but this time you can utilise it for OpenGL applications as well.