I have found if you do a support request Bricscad are very good and do respond.
I am running Bricacad V25 with Win 11, I7, 16gb, NVIDIA GEOFORCE GTX and works fine, yes have locked up on occasions but task manager always allows me to close BRICSCAD, normally a programming problem, infinite loop etc. Did have a fatal error opening a DWG sent via Email, which I think corrupted the large dwg.
Have downloaded and installed multi versions over time and had no problems.