I simply like my dumb little lights to do silly little things integrated with my stupid little games. I like it when i play warframe and the keyboard lights go wheeewww. I simply have a childlike lizard brain reaction to “oo lights do thingy when game do thingy!” I know it's dumb and it's not even a good keyboard but my brain chemicals go brr for the pretty lights. I would kill a man for a way to get that RGB integration and have key switches that aren't lame.
Can't speak from experience since I've never had any razer products but openRazer looks like it works really well. I don't know how it does with games under proton but I'd slightly lean towards expecting it to work though so I think it's worth a shot if you haven't tried that already.