Stripe was celebrated by developers when it launched, due to ease of integration.
Evolving regulations and features now means the Stripe API is yet another forest for developers to pick their way through.
The Stripe Customer Portal offers easier integration but requires customers to have a Stripe account.
Of course we also have PayPal plus others although neither Stripe nor PayPal handle tax but Paddle does.
Many options. Many flavours. What are you using?