I think the Stripe plugin may need an update for european transaction; is required Strong Customer Authentication (SCA) :
https://stripe.com/docs/payments/accept-a-payment?integration=checkout
https://checkout.stripe.dev/
https://stripe.com/docs/strong-customer-authentication
thank you
https://stripe.com/docs/payments/accept-a-payment?integration=checkout
https://checkout.stripe.dev/
https://stripe.com/docs/strong-customer-authentication
thank you