As a software engineer who has developed on Macs (and Linux) for most of my career and has recently started a job that requires me to use Windows again, I can tell you from experience that Office on the Mac is far, far more stable, easy to use, and considerably faster than on Win11. Microsoft’s macOS team are really good at their jobs.
But then I don’t find macOS to be slow or a buggy mess, so mileage may vary.