I like multiboot. Used it back when I used Windows.
The Ventoy advertisements on Reddit looked too suspicious, so I never checked it out.

Debian is in many ways the “deep end”.

The first time I tried Debian was when I was new to Linux, on a laptop with both the Ethernet and Wi-Fi unsupported. On top of which, it had an nVidia GPU. It was hard.

Now I know much more about Linux and checked the Motherboard for Linux support before buying it. Debian works pretty well.

So, it’s beginner friendly as long as someone helps you out with the installation after checking up on all the stuff you will need to run.