They admitted to testing nothing, they just [googled it].

To be fair, the massive install size was probably the least of the problems with the game, it's performance has been atrocious, and when they released for xbox, the update that came with it broke the game entirely for me and was unplayable for a few weeks until they released another update.

In their defense, they seem to have been listening to players and have been slowly but steadily improving things.

Playing Helldivers 2 is a social thing for me where I get together online with some close friends and family a few times a month and we play some helldivers and have a chat, aside from that period where I couldn't play because it was broken, it's been a pretty good experience playing it on Linux; even better since I switched from nvidia to AMD just over a week ago.

I'm glad they reduced the install size and saved me ~130GB, and I only had to download about another 20GB to do it.