I recently installed the STM32 Cube IDE from ST [1] and discovered that it contains a stealth binary of Google's Chrome in my home directory. The fans started spinning and I found the culprit pretty fast, but if you delete the Chrome executable in the double-hidden directory it just gets installed again at the next run of the IDE.
I wonder what percentage of market share can be attributed to this kind of clients that are used not for browsing but for lazily loading some web interface or product page.
[1] https://www.st.com/en/development-tools/stm32cubeide.html