Bazzite will not help, ur bottleneck is old nvidia which not supported anymore by nvidia, so u stuck to Linux kernel 6.8 and nvidia-driver-470, u also need MBPfan daemon without it cooler not working properly u will overheat all time https://github.com/linux-on-mac/mbpfan

Sequoia sucks actually, better install Monterey it works nice on such machines.

Yes, but something wrong here they are down since 2023

Problem no itself in os at all most vendors do not let install any custom sign keys at bootloader level, if u gonna lock bootloader u literally just break ur phone

I think habits and also some features which give github like free github actions for public repos

Samsung? They will not give a shit it huge corp

Then make them secure everyone can complain and do nothing, write code develop ecosystem

A lot depends on hardware actually, mix of USB Controller, video card, UEFI and etc type of suspeing s3,s0ix so huge fragmentation actually, it so bad that eveb on modern windows it holy crap shit not work because they forced on s2idle. Tell what ur hardware and please share journactl logs of when it fails