2021 Sketchup Pro Subscription Won't Open

Sketchup Pro 2021 wont open on my machine. It has worked before, but then on Friday it just crashed and wont re-open. I have restarted, re-installed, nothing.

any ideas?

The first thing I would try is updating your graphics card driver to the latest version available from the Nvidia website. A second thing I would suspect is extensions. Does it open if you double click on a model file in Explorer?