Yep indeed. At least Android is made available to all manufacturers of mobiles, unlike iOS, which (more sneakily) ties you into the hardware too. I've no idea how Apple have avoided the fate of MS, when they were forced to split Internet Explorer out of Windows, which had been excluding other browsers from gaining a foothold.
I've tied myself into the Google world too, so they'll have a lot of data on me... but the trade off is that it's a very useful system at no cost, and I opt out of or block targeted advertising, so it doesn't intrude much (if at all) on my use of the interweb.
That said, I don't employ Google to run my home systems and listen into my conversations or farting via Alexa or Google Home... that would be a step too far for me.