[crosspost] recommended slicers for 3D printer and 'filled' volume estimation (drivers, consumes and so)

I'm completely new to 3D printing, but I do have a XYZ Da 
Vinci 3D printer and I've caught sort of an offer for 12 1 
kg coils (6 PLA, 6 ABS), so I am thinking about making sth.

I use OpenSCAD for modelling, reasonably well, but that's 
all for now.

So, now ?
I've heard about the keyword "SLICER", but dunno exactly the 
function of this kind o sw, though I guess I will need some.

Which one would you best recommend ?
(formats : .deb, .flatpak, .appimage
I am not very willing to reenable .snaps and I no longer use 
windows at all, so let's we exclude it).


Another question : those slicers, also suggest the correct 
orientation ? I mean, the best orientation for stability of 
the intermediate states ?
I am sketching shapes with many hollow spaces (tubes, 
fittings, flanges and so).

Last question : can the slicers guess the "filled" volume ? 
This in order to esteem in advance how much plastic one will 
consume.
If not, do you know some 3D manipulation SW that can import 
any of the output formats from OpenSCAD and calculate 
volumes of 'filled' space of a (COMPLEX !) shape


Err ... another questions. If one runs out of coil during 
printing, the average printer is smart enough to suspend the 
work, let the user refill the coil, and resume the work ?


sorry another question, LOL
are there DRIVERS for the Da Vinci XYZ 3D printer for debian 
? The CD had only windows drivers ...



-- 
1) Resistere, resistere, resistere.
2) Se tutti pagano le tasse, le tasse le pagano tutti
Soviet_Mario - (aka Gatto_Vizzato)