You dont need a second computer, just replace the drive with an empty one.

It might be worth setting up a seperate Chromium extension store independent from Google

No, that temperature would damage your screen. The professional hot plates for phone repair are typically set to 85-90°C. With a heat gun you may need to set a higher temperature since you are only heating up part of the phone and it cools down again during the process. My printer (Prusa MK3) with PCB heater can go up to 120°C, so it looks perfect for the job.

Spotify does not have the power to lock your credit card or paypal account. Account bans might happen and I have seen E-Mail screenshots of people who got banned. I am not sure if they would take down an entire set of family accounts.

If you care about the content of your Spotify account (playlists, listening history) you should not use it for piracy. Just create a new one. If you are fine with 160kbps OGG files, you dont even need a paid account.

Do not create Spotify accounts with trash mail addresses, they may work at first and get banned the next day (happened to me after I created some accounts for scraping their API).

You can also export all your Spotify data as a precaution (GDPR export from the account page, they send you an email with a link to a zip file after a couple of days).

What is a CD player plug?

And the weight. A recreational glider weighs about 600kg. They want to build one that carries 3 and later 10 tons.

If a recreational glider crashes into a house, it usually does not cause a lot of damage except to the pilot, see here:

https://www.tz.de/welt/niedersachsen-segelflugzeug-stuerzt-wohnhaus-zr-2446316.html

Now make that thing 20times heavier. There is a reason drones are regulated by weight class.