Ive had the complete opposite experience.

Office on my M1 macbook air is noticeably more stable and responsive than the dell xps13 bought in January, and the mackbook was like half the price. That XPS is probably the last windows machine we buy ever.

Also most of our employees have fully migrated to libreoffice now.

The GP meant features. Office Mac is missing a great deal of them, like all the Power*/DAX functionality. And even if it has them, they might be half-baked; just to connect to pgsql, you need a paid odbc driver that costs about the half the price of the Office, you cannot use the open source one.