Changing the mode is just a matter of changing one line in one file. But getting hibernate to actually work is a bit of hassle, especially if you have any kind of encryption or non-standard file system. This said - I managed to get mine working on encrypted Btrfs.
What linux distro do you use? I always encountered the problem that after doing some work to get things going everything had to be redone after the next upgrade. Do you expect to have this issue?
I don't think upgrades change this configuration. I use Arch, which is a rolling release distro, so maybe this is a factor, but I didn't have any issues with upgrades, apart from one time when Framework released FW upgrade few months ago, which overwrote the boot record (took 15min to fix/recover), but that is a different story...
Changing the mode is just a matter of changing one line in one file. But getting hibernate to actually work is a bit of hassle, especially if you have any kind of encryption or non-standard file system. This said - I managed to get mine working on encrypted Btrfs.