I try to export to png and pdf on Ubuntu 22.04.2 LTS, on Inkscape 1.2.2 (732a01da63, 2022-12-09, custom). My problem is this: In the Dialog itself, everything looks normal: e.g. my File called Aufzug.svg is automatically proposed as Aufzug.png for Export as png. When i click export, the file is produced, but it is now called, e.g. '.xdp-Aufzug.png-vBfImL' - the '.xdp-' part is always the same, '.png' depends on what file extension i choose in the dropdown of the Export Dialog (can be .pdf as well) and the '-vBfImL' part seems to be random letters, they change every time i try this. This happens with any file i try this with. The files can be read by Ubuntus png/pdf reader, and after i rename them to xyz.pdf or xyz.png, i can open them on Windows machines too.

What causes this, and how can i export with 'normal' filenames to begin with?
 

How did you install Inkscape? 'custom' does not sound like a package provided by any official distributor.

I think installed it via snap, which might be the problem. ( another tool installed via snap, also does this exact same weird thing to pdf )

Looks like it was a snap issue ? 

https://gitlab.com/inkscape/inkscape/-/issues/4027

Yes, that's what I suspected. Try the ppa instead. snap is limited in so many ways. Remove the snap first.

I am sorry to bother, but what does 'try the ppa' mean? I get that i should deinstall the snap version, but what then?

EDIT: like this? https://ubuntuhandbook.org/index.php/2022/05/install-inkscape-keep-update-ppa-ubuntu/

https://inkscape.org/release/1.3/gnulinux/

At the link above, click the button in the image - install instructions are on the next page :)

Yes deinstalling, and reinstalling as non-snap version (with countermeasures against snap-reinstalling as described) did the trick. Thanks!