This might depend on the version the OS is. I have an LG that’s been great for years, then it got a ““fresh new look”” that featured a giant banner for “recommendations.”
I had auto-updates off, too. Thankfully, they still had an option to revert to the previous menu - but who knows how long that’d stay an option? It pissed me off enough to finally setup AdGaurd Home on my home server.
Fun Fact: It’s increased my phone’s battery life by ~48 hours (excluding the rare occasion where its being actively used all day).
Personally, I don’t have the energy to go to such lengths. My “good enough” has been using AdGaud Home as a network-wide DNS blocker and connect my smart TV to it. It’s been great so far.
Plus, I get the bonus of seeing how much gets blocked.