Steve's Place@msbellows @TheJen I used to do that, but got annoyed with rebooting back and forth. I haven't tried with Windows 11, though.
Linux Mint should not have any problem with the BIOS settings required for Secure Boot.
An alternative might be to make backups of everything that matters, then making a full Linux install. If it is unworkable for you, just reinstall Windows and copy the data back. I've done that a few times in the past.
It's a bit scary when it's your only computing device. I'll see what others have posted about dual booting these days.
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