In looking at a student’s WordPress site today, I noticed that their version of php was 7.2.x.
This was expressed as a warning in the WordPress dashboard.
Fortunately, this upgrade is easy to do on most hosts. It will take about a minute.
WordPress recommends as a minimum php 7.4.
Upgrading will improve performance and security.
Here’s a two-minute Loom video explaining how to do it on Namecheap.
Most hosts will be similar.
Despite what I say in the video, if you used php 8 in MAMP and your site worked fine, I would go up to version 8.
If you do experience problems with the site after switching to version 8 (such as older plugins maybe not working, etc), just set it back to php 7.4.