I like your spirit, but I don’t think a Chinese equivalent to Google Play Services would be more desirable

Magic Earth (while not FOSS, it’s privacy oriented though) can do this.

There’s also Transportr, but AFAIK it’s been unmaintained for quite a while now, so it may not work / stop working soon.

Adding to what others here have already said, I’d definitely download Signal and see if you can get any people to move from WhatsApp/Telegram/whatever to Signal.

I don’t know much about iOS apps, but you could look into more privacy focused YouTube clients, and possibly 2FA clients too (although that’s a bit of a controversial topic on iOS AFAIK).

I saw you mention in another comment that you use Amazon Alexa for smart home appliances. Depending on interest in selfhosting / time / motivation to move away from Amazon, you could look into using Home Assistant instead. It even has a Lemmy community: !homeassistant@lemmy.world.

Signal supports a single momentary position, but not live location.

What worked for me at my old school was using a ShadowSocks proxy. Basically what this does, is it takes all your traffic and just makes it look like random https traffic (AFAIK).

I believe multiple VPNs support this, for me with PIA VPN it’s in the settings under the name “Multi-Hop” (PIA only supports this on the Desktop App, not on mobile).

This technique is pretty much impossible to block, unless you ban every single VPN ShadowSocks Proxy IP. If that is the case for you (chances are practically 0), you could also selfhost ShadowSocks in combination with the Cloak module, however this method is a lot more complicated.

Quite a few cars also still have a SIM card hidden somewhere, which can be removed. The location of it varies widely though and they’re usually pretty hard to find.

That’s incorrect, Graphene OS has Android Auto support.

Consent-O-Matic is super convenient if you frequently visit new websites or clear your cookies. It will automatically decline all those annoying pop ups! https://github.com/cavi-au/Consent-O-Matic

Miracast is pretty good, but I don’t think it supports DRM-content. Also it seems to be getting phased out in favor of chromecast.

This could be a long shot but if it’s a Samsung Galaxy Tab S, the battery connector solder joints kinda die after a while, which can either be fixed by reflowing them or by applying pressure (I have a tablet with that issue). You could try pressing on the battery connector and see if it works then.

Most mobile devices won’t work without batteries. The best way to work around this is to supply it with 4.2V (anything between 3V and 4.2V will do) over the battery connector.

I use Bromite on Android whenever Firefox mobile decides to die