There is no real point in upgrading your gpu right now you have basically the best one the CPU can keep up with you go any higher in quality and you will basically lag the card with the CPU the computer is running
Sorry, but that's complete manure. Gpu requirements depend on 2 things. First being workload, second being user preference.
1. Workload consists of (for games) fps vs resolution of the monitor. If you are on 1080p upto @ 144Hz there's pretty much no need to upgrade, the 2080Super isn't really going to be stressed by anything graphically. If you are at 4k, that's a different story, games like Cyberpunk 2077 and CoD etc with uber high realism and lighting detailing are going to dump the fps in the toilet.
2. That leaves user preference, which includes 1440p use, since 60Hz shouldn't be much of an issue, but 144Hz can be, so that's on the user to figure out whether to drop detail levels or get a stronger gpu. Some users simply prefer never to have to worry about anything and buy bigger than they realistically need at that point in time and call it 'future proofing'.
You can run a 12900k with a GT1030, if all you do is office work and watch youtube or movies. You can run a 10400f and 3090Ti if gaming at 4k/5k standards. There's no set point where a 9900k and 2080 Super is "basically the best one the CPU can keep up with". That's as bogus a statement as a bootleneck calculator comes out with.
@Ljb2148 Nobody can advise you whether to upgrade or not with the info shown. There needs to be more. It'll be on you to decide whether or not fps is being affected by the gpu because of the detail levels and games you play, according to the resolution you use. If you are on a 1080p monitor, there's no need to upgrade, only a possible want. If gaming on a 1440p/144Hz monitor and not getting anywhere close to 144Hz, but dropping detail levels gets you closer, then maybe an upgrade would get you there at the levels you want. If gaming with a 4k monitor, then yes, an upgrade would be advisable as you'll generally be in the 20fps to 40fps ranges unless playing at low settings.
Without knowing the what and why the gpu is doing, blanket statements are meaningless.