Samsung was nabbed slowing down devices with its software updates and has been hit with a $5.7m fine in Italy. This comes after Apple was caught doing the same thing earlier in the year, although the American company did have plausible reasons—unlike Samsung.
https://www.notebookcheck.net/Samsung-hit-with-massive-fine-for-slowing-down-devices-with-updates.346591.0.html
To be exact, it's not that Samsung intentionally slowed devices with updates but only that new updates weren't optimized for older devices, so that's also different from Apple's measures.