Heavy usage of video card memory

Hello everyone! Krch I somehow downloaded the avengers game and launched it on high, it flew, no friezes, no lags, but crashed with an error that there was not enough video memory. I even scored on this, I downloaded the wolfenstein new calosus hah, the game of 2017 seems to not slow down at high, but also in the game itself, notifications are already coming that there is not enough video memory. Then I downloaded marvel spider man and it also crashed with an error of insufficient video memory. I thought the mb requirements of the game are not suitable, but when I looked I realized that something was wrong. Plus, with all closed applications, mb steam current is running, just on the desktop, memory consumption was 4 GB out of 12, yesterday it was 7 out of 12 on the desktop.
I5 system
10400
Rtx 3060 12gb
16 ram
650 watt unit
Please help me solve this problem if it exists or I don't know something!!!