Can confirm. Google is a new Microsoft, they leverage their position to cross promote their shit browser and their shit data stealing services. Sorry guys, if your data collection website doesn't work well with Firefox and uBlock Origin, I just won't use it.
Most people, including a great many former Firefox users, simply chose to keep on using Chrome because it offered (and still offers) a superior web browsing experience compared to its competitors.
This isn't specifically tied to the performance of Google's various web sites, either. Firefox still feels slow and bloated even on non-Google web sites. A lot of people who don't even use Google's web sites or services still choose to use Chrome anyway.
Many of Chrome's users could easily switch to Firefox at any time, yet they choose not to.
Firefox's developers simply haven't given people a compelling reason to start (or to switch back to) using Firefox.