"can run linux if you want" - but it's difficult enough that most of us just give up and run one or the other and it's definitely not user friendly enough to ever teach a relative. I've been a casual Linux user for 25 years now. I've officially given up dualbooting. One software update by Microsoft or accidental EFI change the house of cards seems to fall apart.

idk, I've been dual booting for awhile with secure boot and haven't had any issues. It was definitely less stable like 10 years ago sure, but nowadays I think a lot of the wrinkles have been ironed out.

live usb with persistence on the usb stick itself or on hdd partition running windows works like a charm. save your data on the hdd.

im on mx linux and life is such a breath of fresh air.

Didn't secure boot fail because someone at Microsoft leaked the encryption keys?