Re: What is and isn't G Suite
YouTube surfing in another tab on the same browser, or, indeed, general browsing for "new coffee machine"- i.e personal topic. Is that non G-Suite activity still being mined by the chocolate factory to sell ads?
Things like YouTube and Google Search are connected into Google Workspaces (formerly GSuite) - corporates have youtube channels so you can assign permissions and users can interact with YouTube via their corporate ID. There's also an internal search functionality for documents within your organisation (along with some neat eDiscovery tools). If you're signed into your work account, you shouldn't treat anything in the same browser as "personal topics".
Unfortunately, Google Workspaces will continue to be popular with SMEs because props to Google (the only credit I will give them) - there's one control panel to rule them all, unlike the *ahem* 179 different Microsoft Portals.
Microsoft is an utter mess. Just consider their Plans and Pricing for MS Teams where they tell you that it's included with 365 Business Basic and Business Standard and E3, but omit Business Premium from the comparison table. If you go to the 365 Business page you can see the Premium, as well as 365 Apps which does not include Teams (despite the page header stating "Reimagine productivity with Microsoft 365 and Microsoft Teams").
Microsoft do their best to prevent you ever comparing more than a subset of their plans, leaving people thinking "But I need something halfway between those two plans", which does in fact exist - but somewhere else.
What Google have got right is having a single table, with easy onboarding and a single admin panel once you're in. And that's why Google will continue to hover up 5-20seat businesses with no full-time IT staff. It just works.