These applications are viruses. They eat all your resources, make connections to the network, and you can't get rid of them. I don't understand how some (most?) of humanity has accepted that it's acceptable for Apple, Microsoft, Samsung and Huawei to make it mandatory to use their spyware. If i as an individual sold phones that are tied to crappy malware i would be in prison very quickly.

They control your phone, you don't. On some older Galaxy phones, you could at least unlock the bootloader and install LineageOS (which is much faster due to not running all this malware) but apparently it's not supported on S7. Samsung is slowly becoming the new Apple where you can't remove your battery without a screwdriver and there's a "Knox" security where if you lose your password (or somebody donates a phone without donating the password) the hardware will go straight to the (non-)recycling bin.

Is buying a PinePhone the only option to get decent hardware without lock-in for under 300€?