

Before spending too much time troubleshooting Linux Mint I would try something that’s a bit further along with the kernel updates considering your gpu.
Personally I’ve had good luck with Fedora KDE - https://fedoraproject.org/spins/kde
If you still wanna go for Linux Mint look into how to install the mainline kernel yourself:
https://forums.linuxmint.com/viewtopic.php?t=443810
https://ubuntuhandbook.org/index.php/2020/08/mainline-install-latest-kernel-ubuntu-linux-mint/
You will probably want to enable the non-free rpmfusion repository. I can’t remember if that is an option during install, but if not here’s how to do it with the console:
https://docs.fedoraproject.org/en-US/quick-docs/rpmfusion-setup/#_enabling_the_rpm_fusion_repositories_using_command_line_utilities
If you scroll down to Media Codecs and HW Acceleration you’ll have a guide on how to get proper ffmpeg and h264 and h265 driver support:
https://github.com/devangshekhawat/Fedora-42-Post-Install-Guide