Some decent suggestions, others not so great.
Why tf is turning off advertising ID on the last week?! Stupid easy and prevents many more services other than Google from targetting you.
Half of these privacy browser extensions make no difference since they make you more fingerprintable due to your unique set of signals based on what is blocked. Unless you're gonna install CanvasBlocker or NoScript, adding these extensions doesn't due a damn bit of good besides blocking ads and bloated telemetry scripts.
Also, all of this is kinda moot if you run a version of Android with Google Play Services. Using GrapheneOS, a mobile Linux distro, or getting a Huawei phone is absolutely necessary if you don't want Google to see every single notification you get on your device.
Normie-friendly privacy guides always suck ass because they don't ever explain threat modelling. It's always switch to this other corporation's cloud services instead of using offline-first or self-hosted services.