NT kernel is pretty solid and thr earlier NT kernel OS such as Win 2000 and XP are solid too. They definitely did not have the security features modern OSes have but security always evolves.
I mean NT is still way more advanced and modern than Linux will ever be, per definition. NT implements a lot of modern security architectures right into the kernel, while Linux inherently just lacks a lot of them.
But apart from NT I can't think of a lot more solid products that came out of Microsoft.
I think MS SQL Server is fine? Office is good if you ignore anything after 2013...VS debugger is good, but VS itself is bloated.
Meh, not many indeed. Anyway they adopted the beta to user and improve on the way mindset long time ago. Windows terminal was not very good back then but now it is OK.