Valorant ALT TAB Freezing Windows 11 PC Fix (June 2022)
Written Steps:
1. Open Registry Editor
2. Open \HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer
3. Right Click "Explorer" Folder, Select "New", Select "DWord 32-Bit"
4. Name it "AltTabSettings",
5. Right Click, Select "Modify", Change Value to "1"
6. Restart your PC
7. Your Alt Tab will become old windows style but it will fix the Valorant Alt Tab Issue
Some also says turning off "Hardware Accelerated Scheduling" on Windows 11 system helps them.
credit to reddit user SmileMattsIsHere