What utter nonsense. Windows 11 doesn't support anything older than a late 2017 processor with TPM2.0. Sequoia supported the same with the 2017 Mac Pro.
Monterey is OLD and supports computers back to 2014 - 12 year old systems. Developers can't continue to support very macOS version forever, it's not an arbitrary decision to restrict usage to a specific OS it's because the software will make user of newer APIs and have fall-back legacy support makes an app bloated and more time consuming to maintain.
I don't know what Google want to do that specifically needs the newer versions of macOS, nor do I care, the software is free and they want the most users possible so they've obviously decided that supporting Macs older than 10 years old isn't in their interest.
It's not like those Macs suddenly can't browse the internet, there are tens of other options - but I don't think it's unreasonable at all for a 12 year old system to stop getting the latest updates. I wouldn't want to be using any Intel based Mac anymore, let alone one from 2014!