I had a few problems with this games controllers. Out of the three controllers I own, the best experience was with the Knuckles. My Pimax Sword controllers would not register some things and neither would my HTC Vive Wands. The Valve Index Knuckle controllers worked the best, however, these were not without problems either. I do not know if this is a game related bug or something to do with Proton.

I've played a total of ten hours of this game online. I had zero issues what so ever connecting to other people. If the developer does not change anything and nothing exist that is a problem that I have not made it to due to only playing ten hours, this should be considered flawless on multiplayer.