Once you get the hang of it, paddling is pretty straightforward, and you can enjoy your time out on the lake. I gravitate toward my kayak when I want to move, and I take the paddleboard out when I’m more in the mood to chill. You can lie down on a paddleboard in the middle of the lake to sunbathe or meditate or whatever purposeful name you want to give to just lying around doing nothing (drop a fishing anchor if you want to be sure you don’t float away).
Paddleboard yoga is also very much a thing. I wouldn’t recommend it for your first time, though; just standing up is enough of a balance challenge if you’re not used to it.