Interesting. I know I'm not a very demanding user of word processing or presentation software. But I've been using zoho for basic business stuff for one of my businesses since 2019, and I wouldn't call it crap. It's not amazing, but I pay something like $12/user/year. And I get shared docs/sheets/decks + pretty decent email. And their transactional email service (zeptomail) is actually top notch IMO.

What missing integration makes you say "it's crap" and what do you consider a good version of that thing?

I am a home user, but I use Zoho's paid email service as a backup and alternative to Gmail and Outlook, and it is pretty decent and extremely affordable.