[Scribus] Postscript files

[Roger]

This may be off topic.

My computer parts supplier is adamant that  new laser printers are non
postscript, rather they use a new file format developed by Microsoft.
As I am in the market for a new laser low to mid range printer, I use Linux
exclusively and Scribus easily exports to eps and ps, I am a little
concerned. I find with 1.3.3.8 scribus, jpegs lose a lot in resolution when
printed and don't now why.
Can someone offer some advice of tell me if postscript \ eps will continue as a
standard.
Thanks
Roger