Yeah you’re missing out. Whether you care about what you’re missing out on? that’s your call.
I like my hardtail because its raw unplugged riding, it punishes you for each mistake but feels so sweet when you get going nicely, and it reminds me of messing about in the woods when I was a kid. I like my FS as it lets me get away with stupid stuff I’d never dream of on my HT. pop off that lip into a sketchy mess of braking bumps, roots and rocks? Ok. You have a bit more buffer between ‘ambitious line choice’ and ‘eating dirt’, it promotes silliness and speed, both are fun.
And yes as mentioned you’ll then hop back onto your HT and sometimes inadvertently hit that silly line or boost off those roots just before a fading out drop and you’ll realise that its actually alright.. but you wouldn’t have done it before.
I’d hire a good FS for a day or talk a shop into letting you take one for a demo. You’re never going to qualify it by saying its *faster *less technically challenging *more techy… but you might just find it quite fun.