The ease of switching really just depends. Myself, I’ve had several stumbles switching, but I’m still so happy I did and I’m not going back. My wife on the other hand, has had no issues switching from her Chromebook, because she’s a super basic user who spends all her time in the browser.
Dropping the Windows tax means being able to offer computers for cheaper prices, which is attractive to consumers. Several companies are offering Linux these days.