What payment system do you use for your product? I really need your advice.

Hey Maria! Funny seeing you here. Only ones I've seen are Stripe and LemonSqueezy. From what I can tell Stripe is more dev-centric and quick to boot and LemonSqueezy takes care of taxes better plus some other stuff down the road. I know you're pretty experienced, but if you still were deciding I'd just say do Stripe and if you find roadblocks switch

I would say either go for ⭐ Stripe or if you're feeling a bit more alternative, you can always just implement a smart contract for ⭐USDT payments (or any other stable coin).

I've just started using Lemon Squeezy. So far, so good.

I use LemonSqueezy

My product does not require the use of payment systems. However, if you need some advice, I might suggest using PayPal. I read a lot about payments, used https://playsafecasino.ca/payments/ for this. This payment system is used in almost all areas. It is a reliable and widely accepted payment system that provides secure transactions.