Have a suggestion for ya ... in your 'spare time' (if you are really curious to explore native build vs something like Bitnami) ...
Crank up a Ubuntu LTS 20.x minimal and build ... PHP, MySQL, Apache/nGinx box. Use git to install and maintain the moodle.
Here's where you might finally conclude ...
Bitnami easy to get up and running.
Not so good to update when needed ... that includes Moodle code.
Build your own ... native ... a little more trouble to get up and running (but not rocket science), but since you built ... you know that server. In the long run, a box you build is best ... from your perspective!
Interchangeable parts ... assembly line ... those have been around a long time ... still with us! Is there any wonder why?
My 'ancient' 2 cents and suggestion!
'SoS', Ken