I’m your size (6’2″ 220) and ride an older Ninja 250R.
I think it a great bike, especially for a first bike.
They are very maneuverable, very fuel efficient and have great range. I get about 250miles before reserve on a tank. Few other motorcycles will go as far.
Plus they are fast enough to ride with any traffic, though I think any bike without real fairing will be tiresome about 70mph.
The stock suspension is soft for a large guy but is still useable. Your legs are bent pretty tight but if you look supersports are even tighter and have a much more aggressive riding position. However I have found if you ride lots your legs adapt to the position readily.
Go for it. Worst case you find the bike doesn’t work for you and you have to sell it for about what you paid.
Me I’m having too much fun to consider selling. Adding a second bike is a possibility but I don’t think I will sell.
Craig