If Rocket League was supported officially in Ubuntu and this sound issue was sorted which makes the speaker sound like there is a bamboo tunnel installed inside my laptop,

I would never boot in Windows again.

i played it once on ubuntu, because my gf wanted to play a match with me.
So i installed it through Lutris, ran it, played a few matches and was done.

No Glitches, no Sound Problems, absolutely nothing. Game ran totally fine.