Storage decreases after playing a match?

[https://imgur.com/a/y4NeWw5\]

For some reason, after I play a match my storage just decreases and I don't know why. I've tried checking the logs and cache but they don't have much value at all. Yesterday after I playing, my storage decreased by like 20(?)gb after playing several matches.

Does anyone know how I can get rid of all the storage that was taken??? Because why am I gaining so much gb after a match? In my settings it says Valorant is only taking 28gb, but why does my storage magically gain more after playing a while? I've also tried deleting temporary files but they just won't delete...