If you work in IT, LinkedIn is just another spam source.

Only if it disables the Wireless Debugging option. This controls the service option.

Shizuku opens your device to a wireless install. Sure the default mechanism requires a confirmation of pairing, but this is a vector of attack. Additionally, you will have a small server running, potentially 24/7.

Regular users should NOT be using this!

1% wealth is not pure money. It is stock and real estate. Also shares.

To keep the value of their wealth the 99% needs to spend.