Over the years I've tried switching to Linux and it definitely was less user friendly. I think Mint has made huge strides and hopefully will be able to take over.
I tried Ubuntu in 2015 or so, and Mint in 2018, and quit both times. Now i've been using Mint since last July.
I don't know if it's because Linux changed or i changed, but one way or another something clicked. I'm planning on switching entirely to Mint before Win10 reaches end of life because there's no way i'm installing Win11, so i have to migrate my whole workflow by then.
I've switched my geriatric mother over to Ubuntu, and she's been fine. She's been using it for a full year at this point, and hasn't made a single complaint about anything.
She doesn't need anything beyond Libre office, so that definitely effects the experience. But it is plenty user friendly.