PayPal is steadily decreasing in share of web payments, with the one redeeming part of their business being Venmo, which appears to be crushing Cash App.

Adyen competes primarily on price with no feature differentiation, and doesn't have the same ease-of-use.

Working at several large companies in payments areas who were Stripe customers, I'll sum up what the competition looks like by paraphrasing one of the executives I reported to: "we go to Adyen when we want to take a competing offer to Stripe for them to match".