Old Builds

I don't understand why you don't let people choose the build they want for Discord. Is it a choice to make compatibility easier ?

Actually, I'm okay with the new UI. But I've some friends who doesn't like it, and I find this strange that you don't let people just... choose the UI they want. Can you let people choose in the option menu, like for the light or dark mode ? :)  If not, well, please give the old builds.