This happened to me too in a mini seasons game for the first time yesterday. I had to actually unplug my PS5 to get out of it and took the loss.
Luckily it was only the 1 time but even so this should not happen in offline modes period. This year’s game does seem to be the “buggiest” I can ever remember.
Whether it’s broken coding stacked on top of more broken coding, lack of resources to address issues, or just flat out lack of quality control, it’s definitely noticeable on a daily basis.