Yes! Co-signed! Also the sequel, Diebuster, which is about a gay robot! I have no idea where you can watch Gunbuster legally these days, but Diebuster is streaming on Crunchyroll.
Looking though the thread again, Revolutionary Girl Utena is a must-watch and, as posted above, is completely free on YouTube (which is wild).
I also want to add Trigun to my list of recs. It was contemporary with Cowboy Bebop and it’s a Space Western so the two get compared to each other a lot, but it’s doing it’s own, cool thing regarding the nature of non-violence and when it’s appropriate to break an ethos of non-violent intervention. I watched it for the first time last year and thought it was really fantastic!
Also worth mentioning 0080 War in the Pocket and The 08th MS Team, for a lot of the same reasons Austin Walker has talked about innumerable times on multiple podcasts. I personally prefer 0080’s focus on just how directly citizens are impacted by mobile suits to 08th MS Team’s anti-war romantic through-line, but both are worth watching for sure and showcase different things Gundam does, both good and bad.