Ok but strange you mark this as solution. The solution to your post was answered by @joekamprad, maybe useful for future users to know which awesome package had to be installed (and removed) to fix the issue I guess.
Also what created the problem in the first place? Was it the AUR packages that installed other awesome fonts as dependencies? Would be good to check.
I think you’re right! Now I marked his answer as the solution. And about the problem, it wasn’t caused by any AUR package, i just mistyped FontAwesome to FontAwesome 6 in my config. And I removed ttf-font-awesome and otf-font-awesome because awesome-terminal-fonts already provides icons from FontAwesome that I needed.