Since you can't get the regulator out past the window track, it has to be detached temporarily

It's held on by two 10mm bolts, which have fancy dimpled flat washers, and lock washers, I've circled them in green in the picture

Remove those two bolts, which should give you enough movement to push that window track forward off the window a bit, then into the door a bit deeper

At this point it should be possible to pull out the window regulator, angling it as you go to avoid jamming on things