Great write-up, but in my opinion this is exactly the wrong way around.
That way, you don’t gain anything from your “switch” up front.
Better to switch to Linux and keep the apps you know wherever possible. Office, Teams, Photoshop, Lightroom and many others are available as web apps now. For many others, there are versions ported to Linux or running well in Wine. Finally, Gnome Boxes makes it trivial to integrate a small 50GB Windows VM to run apps where there’s no other option.
Then you can slowly migrate to Linux-specific open source tools, in your own time.
It helps if you can get away from an app-centric view of computing to a result-centric view:
You don’t need MS Office, you want to create/edit documents, tables or presentations.
You don’t need Photoshop, you want to edit images.
You don’t need Outlook, you want to connect to Exchange.
Almost all tasks are possible to do on Linux if you change your workflow a bit. Some aren’t, especially when you’re forced to collaborate with others in a professional setting. In that case, you can still minimize your Windows usage to what’s necessary, by using Wine, web apps, dual-booting, using 2 devices, running a Windows VM inside Linux, or running a Linux VM inside Windows, depending on your needs.