Thanks for the answer!
I realized that I was not putting the correct path for chroot and some different methods from different places were confusing me. But I did get into chroot, tried fixing it (grub2-mkconfig, dracut --force --regenerate-all etc), ran dnf distro-sync; I fixed some conflicting packages; finished the 5.15 installation, but not even using the other kernel entries I was able to get back to my desktop. Tried even rEFInd but I would get stuck at initrd-switch-root, the same as with GRUB, or I get stuck at /dev/gpt-auto-root" always falling into the Rescue prompt.
“I already entered in chroot ran dnf distro-sync / grub2-mkconfig / dracut. Grub2-mkconfig removed my entries. I am trying to boot with rEFInd, I get stuck initrd-switch-root, the same as with GRUB or I get stuck at /dev/gpt-auto-root”
After spending too much time with it I installed everything from scratch an restore my backups.
Thanks a lot for the help.