Which is why LMDE exists.
Too bad LMDE is based on Sid. Some stuff can break on occasion.
I few months ago I helped an older lady at a repair café to replace her Win10 with LMDE (because that's what she wanted). Installed just fine but didn't boot after reboot. Installed LMDE 2 or 3 additional times, to make sure I didn't overlook something. Same result.
Then installed Fedora and it just worked.