@lanodan @piggo Whenever I use manpages, I use man -a and quickly skip from GNU pages to the POSIX ones. (For section 1, that is; OTOH system APIs often read better from Linux man-pages than from POSIX.)
I quite hate how GNU manpages mostly give the incantation for the actual documentation (Full documentation […] available locally via: info '(coreutils) ls invocation'). And for stuff like make(1), GNU manpage is pretty much a complete joke (lists only flags for the command, not the language).
But still for common invocations, I find tldr is usually quicker than the manpage.