This is an accepted solution.
Thanks for reaching out!
Apple Pay and Google Pay are both examples of accelerated checkout processes. Each one is available on mobile and desktop, and will be presented as checkout options depending on the browser your customer is using. For example, if a customer is using Google Chrome or Mozilla Firefox, they may see the option to complete their payment with Google Pay. Similarly, if a customer is using Safari, they may see Apple Pay.
Both links I've shared above will go into more detail on what you can expect for both of these checkout experiences, but the key takeaway is that customers will be shown an accelerated checkout button on their cart page and have the opportunity to bypass the step of entering their credit card details.
Are you currently using Shopify Payments as your primary payment gateway? If so, you can visit Settings > Payments > Shopify Payments in your admin now to confirm that both accelerated checkout options are selected and displaying here:
Please don't hesitate to let me know if you have any other questions!