I tried Parler too with similar results.
I actually found out shortly after this how to do it. You click on the left side (or however it is set up on your page). The symbol that looks like a comic book ‘talking’ balloon, only it is empty and it takes you to the comments on that post.
If you hover over that balloon that points downward it has the word, ‘comments’ come up. You just click that balloon.
Btw, I’m on there under @BarbaraBarber