A problem that started in openSUSE Leap 15.3 is worse in 15.4.
Neither LibreOffice (7.3.6.2) nor FreeOffice 2021 Textmaker (installed just to test if LibreOffice is the problem) can print properly to PDF or to my printer (HP LaserJet Pro 200 Color M251NW).
Starting LibreOffice in Safe Mode does nothing (again suggesting LibreOffice is not the problem).
For long pieces of computer code and for images, there is a SUSE/openSUSE paste site.
For long code sessions it is easiest to use the susepaste tool:
some command | susepaste
Pasted as:
https://susepaste.org/74995563
https://paste.opensuse.org/74995563
Link is also in your clipboard.
You can also go to https://susepaste.org/ and upload there (for am image see the word Image at top-right).
After you did this, you can copy/paste the URL from the page as shown in the address bar of your browser (and not the URL of the image itself). Paste this using the Link button (the one with the globe) from the toolbar of the post editor.