Sorry to tell you but the headphone jack is dead. You can plug headphones into USB C if you don’t want batteries.

Personally, I think that one standard port for everything on every phone is a good thing. That way everyone’s efforts for development and optimization are bundled.

So… the Fairphone?

Then…go outside?

adb = connect your phone to your pc and send commands to it. Can do things that aren’t included in the Android user interface, but can’t touch the core system or give you extra rights. Necessary for the Universal Android Debloater and flashing custom ROMs.
root (most common method is Magisk) = gives you access to functions that are normally off limits. Its utility is overestimated if you just want to use your phone as a phone, but it lets you use it for purposes it wasn’t designed for. Not necessary for degoogling, microG installation or flashing custom ROMS.
unlocking bootloader = necessary for rooting, flashing a custom ROM or replacing Google Play Services with microG. Degoogling without a custom ROM and microG is possible, but a pain in the ass and limited in functionality. You want this.
custom boot loader (most common is TWRP) = necessary for flashing custom ROMS and installing microG.

If your phone is supported by TWRP or a custom ROM (look at LineageOS first), installing that is the easiest way to completely degoogle.
If it isn’t, then you can still root it, remove Google apps with adb and use Netguard to keep any Google apps you still need from phoning home. But getting push messages, location and speech recognition/synthesis to work in your apps is a crapshoot. You will probably be limited to the functionality of open source apps that don’t depend on Google services.

Holy shit, TIL. It’s on 10 already.

This headline sounds clickbaity as fuck, but yeah that would be nice.

Threema, the DWD app (if you’re German) and Nine (if you have an Exchange server)

I simply don’t need it.
In fact, if there was a 4" phone that is supported by LineageOS, I’d buy it in a heartbeat.
I carry my phone in my front pants pocket, and thickness is a lot more noticeable there than the size of the screen.

MS tried to make a Windows that doesn’t suck on mobile devices, everyone h8ed it.

As long as you don’t use it for Office, Microsoft isn’t going to spend money on it. Their cash cow is M365 and Azure, they don’t even care when every single gamer pirates their OS.