Intel Iris Xe Graphics is unplayable now

After the “big” update, the game simply became unplayable.
As it’s a work-oriented notebook, it doesn’t have such powerful integrated graphics - but that doesn’t mean I can’t enjoy it.

I could play perfectly with a stable fps of 60, with many things turned off and the texture quality at maximum.

Currently, for some reason, it’s practically impossible to maintain 40 fps, for no reason at all, the game drops to 15 fps and starts to freeze.
My hardware isn’t that old, so I don’t understand how this could have changed overnight.

Do I get better performance from my R7 360 from, I don’t know, 2015? Hardware that I use for hackintosh and other moddings in general can run better than a high-end business notebook.

Apparently I’m not the only one suffering from this - whether it’s entry-level hardware or the high-end, something is wrong.