[crazygringo]

I've seen more movement in the opposite direction, from M365 to Google.

Mostly from companies who chose Microsoft before G Suite became popular for business.

But maybe it's industry-dependent?

In any case, you definitely need consultants because it's a pain no matter which direction you're going. Not a decision to take lightly, and you're not going to switch again for another 15 years.

[Rimintil]

I generally see Google -> M365 given the severe poor suitability of Google Workspace for enterprise businesses. And given those businesses often need to run Windows & Office regardless, sticking to Google makes even less sense.