macOS ps has a -T flag which is "Display information about processes attached to the device associated with the standard input" (it also has a -t which is "Display information about processes attached to the specified terminal devices.", so -T is basically -t /dev/stdin).

This is really useful, as a way to easily see the parent process list up to the root (login). I use it rather often. And I don't see any way to replicate this in procs. It won't even search on the TTY field even if I pass the exact name shown by procs for my current shell.

I know procs isn't offering flags for filtering, instead doing a "search on keyword", but it really should support this use-case. Either passing a terminal device as a keyword should show all processes associated with that device, or it should support an explicit "search on this field" with e.g. procs tty=/dev/stdin. Probably both.