I’ve got a rigid 29er, rigid forked fattie,650b front suss and 26/650b carbon full suss. The more suspension I find generally makes me faster in most areas so if speed is your thing then yes f/s is more fun and maybe less tiring. I find I use my other bikes more as I like to feel a lot of the trail and not have it damped away as such. So to sum it up , your right ,I don’t actually know !