This is not trivially repro'able, but has been happening pretty frequently (2-3 times a day) since I upgraded to 0.99.126-beta.
The symptom is that, when I close a tab (normally, using the x in the header), the browser crashes abruptly and instantly. When I restart, closing that same tab works fine.
Possibly relevant: I have two profiles. I think that only the one profile is crashing -- certainly not all of my Orion windows are closing when I crash.
I've been consistently letting it submit the crash reports; hopefully those can help diagnose the problem.
The browser shouldn't crash.
0.99.126-beta (WebKit 616.1.22)
Ventura (13)