My office/ lab at home uses around 600W when fully running, and I see that there are quite a few power stations that will comfortably handle that, and foldable 4 panel setups that can generate 300-400W.

Would there be any issues plugging a UPS (my lab has a few of them) into a solar power station such as this?

Is there some sort of feature I want to look for such as sin wave, etc to have this work reliably, or does a UPS not really care since the controller in the power station should be normalizing voltage, etc?