Same, here. I used Windows 11 on Beta and that's already affected me, so i downgraded to Windows 10.
But today, i trieyd a 2nd chance to Windows 11. It tooks 10 seconds or more to srtart CSGO.
Ryzen 5 5600x
8GB 3600Mhz (x2)
GTX 1070 (The same issue when i tried with RX 580)