To add these payment methods, just to into admin/settings/payments, edit the Shopify Payments settings, and turn on those two methods.
Cloudflare outage is affecting access to SOME Shopify Sites from Some locations.At approx. 5pm on 21/6/22 there was a Cloudflare outage. Cloudflare provides a performance/security layer for Shopify and many other websites.
UPDATE: here is Cloudflare’s incident report:
https://blog.cloudflare.com/cloudflare-outage-on-june-21-2022/