Is texture pack allowed?

nope it comes out but disappears again when I click the screen.

Can I ask 1 more question? Whenever I use Fabric and turn on borderless minecraft program, my timer disappears. How do I fix this problem? It didn't happen when I was not on Fabric.

How do I make my minecraft borderless without using f11?

How can I get the timer which Couriway or Dream use?