After updating a brand new ipad from 12.x to ipad os 13, Safari tabs started crashing all the time. I got a replacement unit and it did the same thing. Tried out ipad os 14 and the whole device reboots frequently, usually if a tab plays any kind of video.

On their bug reporting app, switching apps while having a bug report half filled-in in order to e.g. check which URL caused a recent crash, will immediately throw the bug reporting app out of memory and lose your half-entered bug report.

Updates within months of getting a brand new device (on the low end RAM-wise), seem to have completely ruined it. People have told me to buy one with more RAM and most issues would be resolved, but I don't want to throw in more money for uncertainty.