I honestly don’t know. Just that I tried to install Mint and it booted from USB just fine, but gave an error when I tried to run the installer. I don’t recall the error message anymore but when I googled it, the problem was RST being enabled. I (dumbly) disabled it and rebooted into Windows only to find a drive missing. Thought I lost it but after re-enabling and rebooting a couple of times it came back.
I decided not to play until I could move that data and then reformat the drive without RST.
Sony has had the dedicated focus/snap button for years but zoom is handled by the volume buttons. I liked that setup, but went away from them earlier this year because their phone keeps overheating in camera mode. That was as of mark IV anyway. I hear the new ones are better but not sure how much.