I don’t know every detail of your use cases, but my offline go to is xournal++ (xournalpp).
I use it for many of those actions. We moved to Germany and having a GUI pdf editor for signing, highlighting, redacting, pulling pages, etc has been invaluable.
My wife also uses it for her class lectures. She does math, so she uses a tablet to write on her slides (pdfs) live in class to talk through the material. Then, she saves the lecture PDF to give to students with the notes.










WTF even is a Microsoft SlopC? Something that has hardware to speed up their AI deleting important files and sending your private data to hackers? I don’t think we need that fast-tracked, Windows 11 already does it well enough.