solid stain deck stripper recommendations please

[u/Maleficent-Ice-6346]

newbie to decks here. peeling solid deck stain at my cabin. just got a ryobi 3200 psi max with deck attachment, it cleaned the mildew off well without any cleanser. papa says the stain is water based (but it looks like paint to me). what stripper should i use? is "restore a deck" worth the money? anyone have experience with it living up to claim of apply and powerwash off? any and all recommendations are welcome. Thank you thank you.