The VideoJS Player generates a fatal error when a webm video file is to be played in the Safari browser.
The cause is the use of the constant "GLOB_BRACE", which does not exist on non-GNU systems, such as Alpine.
More infos: https://www.php.net/manual/en/filesystem.constants.php#constant.glob-available-flags

The faulty line is in the file "media/player/videojs/ogvloader.php" line: 50

$files = glob("{$basepath}*.{js,wasm}", GLOB_BRACE);

The following simple fix would solve this:

$files = array_merge(glob($basepath . ".js"), glob($basepath . ".wasm"));

Steps to reproduce
Preparations

• A Moodle installation under Alpine is required
• The page requests must be made either under Apple/Safari or using an appropriate “user agent” specification.
• A webm video file is required.

Note on the Alpine installation.
The installation can be done under Docker using an Alpine image as base.

Steps
Create a working material "page" in a course and embed a webm video.
Call up the page either with a Safari or the corresponding "user agent".
In this case, the VideoJS Player will load the file "media/player/videojs/ogvloader.php". Loading is aborted with a 500 error. The error in the log looks something like this:

PHP Fatal error:  Uncaught Error: Undefined constant "GLOB_BRACE" in /var/www/localhost/htdocs/media/player/videojs/ogvloader.php:50\nStack trace:\n#0 {main}\n  thrown in /var/www/localhost/htdocs/media/player/videojs/ogvloader.php on line 50