I'm sorry to hear that you are having so many issues.
I've encountered several crashes and issues with my PS5, as well. Along with some compatibility issues with my new Sony X900H tv (go figure).
The tv compat issues are more of an annoyance, but the PS5 crashes are more concerning. The crashes seem to be related to using an external hdd with the PS5. I'm hoping they can patch that ASAP and that my PS5 is not a dud unit.
However, I'd say so far, the positives outweigh the negatives and I don't regret getting the PS5 so soon. I'm enjoying new games like Demons Souls Remake and the fast ssd loading and auto-HDR bring new life to my PS4 games. Once you experience playing games on the PS5, it's REALLY hard to go back and play games on older systems, including the PS4.
Hopefully the crashes and bugs can be patched by Sony ASAP. Regardless, I have an extended return policy and an extended warranty from Best Buy. So, if I do have a dud unit, I will use either of those to get it replaced. It's just that with the limited console availability, I'm worried it might be problematic to find a replacement console. But hopefully it won't have to come to that.
Hope your issues can get fixed on your end soon. And if you do have a dud unit, hope you can get it replaced.