I believe #10 (comment) is still accurate -- are there explicit recommendations for a "sane" default value for this from WordPress upstream yet?

The current image only allows 2MB uploads and has a very low memory limit.

Hi, I recently experienced something similar.

So I decided to use a php.ini configuration file mounted as a compose.yml volume.

Actually, I wanted to use WordPress using official images and Nginx instead of Apache.

See if anything inspires you: https://github.com/Tiozao-do-Linux/wordpress-nginx