Where’s all the maps?

I started playing again after taking a break for a couple years and after about 60 rounds I’ve only played on the same 3 maps. Family house, Gas Station and Slaughterhouse. It just keeps cycling through those 3.

I’d really love to be able to have it more randomized, especially because we only have 6 maps total.

Does anyone have any tips or tricks to be able to get some more variety?