What's the best way to play it?
I have a PS5, switch, and I'm pretty sure my shit laptop can run it.
Of those options, Switch. Specifically digital on Switch.
The PC version, even with all of the enhancements people have tried to make, is still quite bad. Also, if your laptop is shit, it probably isn't good enough to run it on RPCS3, which is technically the best way to play the game.
Also, if you do get the Switch version, be sure to buy it digitally, not physically. Funny enough, the game was ported to Switch by two different developers. One for physical, one for digital. The physical version of the game received no post-release patches or updates. The digital version however, did receive patches and updates. The Switch recognizes the physical and digital versions of DP1 as two separate games, so the patches for the digital version cannot be applied to the physical version, as they're two different builds of the game. It's fucking weird.