How? My experience with Excel, Word, Powerpoint, event Teams, is that they generally work fine. This is unlike the situation from e.g. 20 years ago, when you could barely get work done due to all the crashes, but that is a very distant memory now. There was a brief time during 2019 when Teams on Mac was kind of awful, but that's long ago in the past as well.

My biggest complaint these days is that Teams uses far too much CPU when I'm sharing my screen. But other than that, everything seems to be ok.

People might not remember, but Word, Excel, and PowerPoint were all released for the Macintosh before Windows. Back then, the Macintosh versions were 1st-class citizens and (and you mention), Windows versions were a buggy mess.

Having used versions on both for years, I'd say there was a "dark" time around 2011 when the macOS versions were lagging badly feature-wise, but they're pretty much on-par today.

My biggest complaint is that you can't turn off the ridiculous animations in macOS versions (e.g. moving between cells in Excel). That makes the entire suite "feel" slower when in reality, the macOS version could easily be just as responsive as the Windows suite.

What's sad is that in my experience supporting 80 users, Word et al work with fewer issues on Mac. The stack integration on Windows is fine, until it isn't.

Lack of parity. It’s getting better but my classic example is ribbon shortcuts for Excel. They did not exist until something like 6 months ago.