I do my development work and run most of my agency (with multiple employees) with Linux. For some of the business things that most people don't assume Linux can do, I use: 1. Xournal to annotate PDFs (aka sign contracts without printing them and scanning them back). 2. LibreOffice of course for most document related work 3. OBS Studio for recording webcam videos along with screen sharing 4. Audacity for audio editing…
Could try out Blender for your video editing. It also appears that DaVinci Resolve has support for Linux.
if possible, including capturing footage form the screen (screen casts).