Same situation here. For heavier editing I now use local Stirling PDF and BentoPDF. As I say above, both run in docker, but Stirling PDF also comes as Appimage. They are powerful but don't feel like integrated applications.
But there is a surprising gap in Linux for PDF editing. Available tools are like toys for the task or geared towards techies. I would expect a PDF reader/editor to be a separate application in the LibreOffice suite. (No, Draw or Inkscape won't cut it, sorry)
The one thing holding me back from switching from Windows to Linux was the very poor PDF support in Linux. Every time I raised this several people told me I use PDF wrong. Others would tell me to use Inkscape, Draw, Okular etc.
Office workers, publishers, academics and many more are expected to edit several PDFs every day. It may be simply crossing things out in a draft, adding/deleting/extracting/converting pages, OCRing or dewarping images. Telling colleagues, clients and line managers they shouldn't do it is not an option. Adobe does all this and more very well. This workflow is so common and important in so many contexts, I am surprised it's not a separate application in the LibreOffice suite. What is more surprising is some of the attitudes.
I have now switched to Linux anyway, but I had to create scripts to do things with Ghostscript. Not very user-friendly and I wouldn't recommend Linux to people who rely heavily on PDF handling.