It may be Opera 130 problem, but can be some trouble at my side - I had no time to check today and can investigate after few days, not earlier.
But I post it here - if anyone other sees similar problems, then I'll test it further.
I have two PCs with Opera dev installation. One of those has got no problems with 130 dev version, another one crashed immediately, then I attempted to click on some heavy JS page, it crashed again, then itcrashed while clicking on google chat "disable notifications", then crashed at loading some other page and so on. I had to roll back it to 128 (previous 130 crashed too; as Opera has been open for weeks, I had not updated it long time).
Configuration of working and crashing instances is mostly same, working instance has much more extensions loaded.
Crashed instance was launched with --force-device-scale-factor command-line flag however - maybe that was the culprit.