Hey there,
It’s hard to tell without looking at your site, but it’s likely due to differences in how your theme behaves for mobile devices vs larger screens.
Here’s the best way to test and find out:
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- Temporarily switch your theme to Storefront
- Check to see if the Google/Apple buttons are showing up on the desktop – if so, then you know the problem is related to the theme and you should contact the developer. If not, please continue to the next step.
- Disable all plugins except for WooCommerce
- Repeat the action that is causing the problem
If you’re not seeing the same problem after completing the conflict test, then you know the problem was with the plugins and/or theme you deactivated. To figure out which plugin is causing the problem, reactivate your other plugins one by one, testing after each, until you find the one causing conflict. You can find a more detailed explanation on how to do a conflict test here.