I'm using both, Thinkpad T460p and Macbook Pro M1 16'. The M1 of course wins easily in terms of performance, battery, screen and design. The Thinkpad still holds up quite well though and for most regular work tasks I don't feel the difference so much. The Mini LED screen is just great though, everything's super sharp. And as the new "top of the line" Thinkpads cost almost the same as a Macbook Pro I think there's very little reason to not switch to a Mac. MacOS is a bit weird and personally I like the KDE desktop way more as a power user, but it's still a good experience.