I installed endeavor os with a KDE desktop evnrionment and then downloaded neovim after launching there was no clipboard support after running :checkhealth. I downloaded xclip and it didn't work, then I downloaded xsel and it still didn't work, only after thinking a while I realized that my KDE plasma uses wayland and not x11, and programs tat start with x usually only work with x11, so instead I installed wl-clipboard and it all worked.