What plastic materials can I print?

[curious aardvark]

yep - it's NOT an ender 3.
Presumably the video was funded by creality.
two reasons.
Dual z axis motors and screws and direct drive extruder. You don't get those from creality.

And yes, all aluminium extrusion based frame I3 style 3d printrs are made with many of the same parts.
It's how you put them together that makes the difference.

Equally you are not paying much money, so what you are buying is a near prusa design (no side support rails for the printbed) I3 and that will ALWAYS be better than a creality design i3.

But it is very much a budget printer, we did try to makeyou buy something better :-)

Thirdly, facegroup 3d printer user groups consist mainly of two types of people.
1) 'I don't care what I bought I will change it all and improve it - often I will do this before ever running it in it's factory configuration !'
2) I can't make it work - it can't be my fault, therefore the machine MUST be faulty.

The other type are the few it's worth joining a facebook group to meet. Who can use the machine and understand how to improve or mod it without buying new bits.

I like to think I'm in the third category.
My thingiverse collection of mods for the he3d k200 delta, have been downloaded by 1700 people and counting. All printable mods.
Just think if people actually paid me for things.........

So it's worth putting up with facebook groups for the occasional person you can actually learn something worthwhile from.

But of the dirt cheap budget printers around, the sovol 01 is pretty good.
But it is not an actual prusa or a tenlog - or any other full featured machine for more money.