a) actual support
b) product lifespans that businesses can rely on
Their penchant for "surprise! sunset"ing major products that users rely on, and showing no reluctance to do this for business customers as well means only scrappy small players who feel like the cost differential or some specific feature is worth the threat of having to migrate one fine weekend.
Specifically in the chat/videochat domain, Google has released and sunsetted
gchat (to...) google talk (to hangouts) duo allo voice
The mic doesnt work on mobile, their ability to get people to join easily sucks.
But i do like HighFive
I have a slack integration to create a highfive video conf i just /highfive (name of meeting) and then share that link.
(Having said that, Hangouts is far from perfect.)
btw, there are three different versions of Hangouts: Classic, Meet, and Chat. Hangouts Classic will be EOL'd later this year. Hangouts Meet is the video conferencing for business. Hangouts Chat is a Slack clone for business that includes video calling.
Google will transition Hangouts Classic users to Hangouts Chat, not Meet:
https://gsuiteupdates.googleblog.com/2019/01/upcoming-hangou...
Google Talk and Google Voice are two other Google products that (used to?) support video calling.
And it's a bit of a wierd criticism since Hangouts actually predates Zoom and most of solutions suggested in this thread.
Ah, Hangouts works splendid for one person meetings! Anything with two or more people I'd rather use something else ;)