Better way to protect yourself is to get rid of Android's Google Play services.

Install a mod like GrapheneOS or LineageOS and use F-droid to get your apps.

Install Molly, the FOSS Signal client.

Don't use WhatsApp, don't use Telegram, don't use Meta apps, don't use TikTok, don't use Snapchat.

Install EFFs Rayhunter App.

Install a Bluetooth beacon tracker protection app like AirGuard.

Use a firewall app like NetGuard to protect leaking traffic.

Always remember, a device has an IMEI associated with its modem, there is no point to switch SIM cards if they're tracking you. Phones with no removable battery are always on, even when they're off, and will react to Silent SMS (class 0) that are stealthy pings that can track you. Especially iOS devices are always trackable, even in Airplane mode or when they're turned "off".

Buy used hardware from eBay, check LineageOS wiki for compatibility.

Stay safe.