I also have knicks( lined, padded) for days I cant keep pulling up warmers( like group rides). Ive found, in a variable climate its good to have one of everything, as seasons, seems to require it( also, I used ot buy lots of clothes, now just cycle gear!)
None of my longs have liners.

A guy cyclist also told me that if your shorts get stretched from too many washings( although mine have gotten tighter), wear them under tights.