Stripe vs Stripe Checkout

The difference:

• The MP Stripe payment plugin allow users to enter credit card payment information directly on your site for processing payment.
• The MP Stripe Checkout payment plugin redierct users to Stripe website for processing payment

Which one to use

• If your business is affected by SCA requirement https://stripe.com/docs/strong-customer-authentication#impacted-businesses , you need to use MP Stripe Checkout payment plugin to be compatible with that requirement
• Otherwise, just use MP Stripe payment plugin. It allow customers to enter credit card information directly on your site for processing payment, so it's easier and faster for customers to pay for subscriptions on your site.