TL;dr - If you are on Win 10, no rush to upgrade. Microsoft will provide support until 2025. There's nothing that's a must-have in Win 11 you need right now.
I use Win 10 (work) and Win 11 (home) not too much of a difference from either day-to-day tasks. Gaming sees a slight improvement, but won't be noticeable for most. If you have an HDR monitor, Win 11's auto HDR feature and general HDR tweaks makes games look better. If you don't game, or you game and don't are about those features, there's no real difference.
What was going to be Win 11-only gaming enhancements are now coming to Win 10 (direct storage, HDR and other gaming-related tweaks). These features are in the current Win 10 Insider's Program.
Running Android apps on Win 11 is okay, but if you don't use Android you most likely won't care.
Win 11 does have some UI inconsistencies and a few hiccups, so user beware.