That's the exact opposite of my experience, souls-like require you to have a large chunk of time to put into the. Just looking at dark souls: you can be far away from a bonfire, have no idea where the next one is, dying means losing most progress, and you can't pause.
Also, when facing bosses, taking a break in between can reset your rythmn meaning you lose some momentum if you put the game down.
Dark souls games can definitely be fun, but I think rouge lites are better for a pick up and play mentality since runs will range from 15-45mins typically (depending on the game).

Wait if I turn off a darksouls game without stopping at a bonfire, I'll pick back up where I left off?