Regarding the tools, you must take into consideration the fact that you do not have Microsoft apps on Linux (unless you run them through wine or online, which is not ideal). However there are several alternative tools, either open source (libre office-imperfect compatibility, Onlyoffice desktop-better compatibility, incomplete feature set) or closed source (either WPS office or FreeOffice). PDF is an annoying one as unless you feel comfortable with libreoffice draw or you want to do more basic editing, tools for PDF on Linux are kind of lacking