I just phone (or teams call) people (not scheduled meetings) to collaborate. This only really worked with people that I worked quite well with but it comes pret

I just phone (or teams call) people (not scheduled meetings) to collaborate. This only really worked with people that I worked quite well with but it comes pretty close to just going over to their office and interrupting them. I'd ping them on slack/teams to see if they are free if I didn't know.