Occuring on multiple instances at the same time? Unlikely.
That opinion puts a lot of blind faith in the companies developing self driving and their infinitely altruistic motives.
2.4ghz WiFi is actually classed as a carcinogen by the WHO. There's some pretty interesting and heavily peer reviewed research supporting this. https://www.tandfonline.com/doi/full/10.1080/10643389.2021.1951549
I've been using Connect for Lemmy, and seems on par with Boost already.
Keeping a text file with passwords in clear text is so much less secure than a proper password manager. Even if the company is breached, at least they are encrypted by a master password and take significant time and effort to brute force. That text file is readable by anyone who gets their hands on it, and with the prevalence of malware, it's a pretty huge gamble to store passwords on your own computer where you are ultimately the only person responsible for your cyber security.