This may or may not help, but have a look at ZorinOS. The latest release and it's announcement is targeted towards those wanting to jump ship from Windows -> Linux. They've tried to account for the adjustment with built-in tips/prompts and the UI looks closer to Windows also.
You're right, Office is where you will struggle.
https://blog.zorin.com/2025/10/14/zorin-os-18-has-arrived/