How can I manage MySQL while using Nginx?

You can manage MySQL while using NGINX with phpMyAdmin.

If you need an installation guide on gettin things set up, we have a LEMP installation guide here:
https://www.linode.com/docs/guides/how-to-install-a-lemp-stack-on-ubuntu-22-04/

And a One-Click-Application deployment here:
https://www.linode.com/marketplace/apps/linode/lemp/

If you need help installing PHP admin specifically, there a few guides like this one (a bit on the older side) and this one (a bit more recent), which you may find useful.

Hope that helps!

-Micah

Thanks! I did install phpMyAdmin on Nginx and have been using it for a while.

Thanks for the link, you made my day.