I don’t remove suckers either so you are not the only “sucker for suckers” LOL!
This is my first year deliberately growing determinates. I gritted my teeth and pruned them. Mostly I took off suckers that weren’t even flowering yet, although a few got inadvertently trimmed. The plants look very healthy and an heirloom variety I tried called Old Brooks.
https://www.totallytomato.com/product/T00518/88
They are every bit as good looking as the pictures. Don’t know about the taste. They need to ripen first.
But it does look like the pruning helped the plants. It’s supposed to give you bigger and better quality fruits instead of lots of small stuff.