Mint is built on Ubuntu LTS but removes some of the problematic bits, it has a recent Firefox and Chrome is of course available, Fletpak support is also integrated.
I’ve run Alma and RHEL as a desktop and it was fine, my main use case was “like Fedora but stable” (more than a year of support). However the repositories are very limited, even with EPEL and third parties, so it eventually irked me enough to switch away. Also no btrfs support without replacing the kernel and adding support from third party places.