Then they killed off the jabber client to force users further into their software ecosystem. Then Hangouts came along and has to some degree replaced Talk with further ties into that ecosystem.
Then they removed browser support for anything but Chrome in Hangouts, initially promising to re-extend support, yet today the docs have changed to just say you must install Chrome.
The most recent eco-system tie-in that this article doesn't mention is Google Hangouts Meet. The corporate conference room version of Hangouts that has a different interface, custom Google hardware, and less memorable links (/xcf-fges-sce vs. /organization/meeting-name).
Pixel has similar limitations when it comes to screen mirroring, only a Chromecast will do for the Pixel! Yet other android phones freely connect to Chromecast/Roku/Firestick/etc all because of a hidden menu setting that Google has disabled and set to 0 by default. You must root your phone to get around it. Great flagship right?
All this points to a company that's so fucking worried that their tech is going to be outpaced by the little guy that they have to resort to handcuffing users to their wares. I've almost completely switched to Slack in the mean time.