3) I use out of date hardware and software as much as possible, being rigorously paranoid to never expose it to anything risky, and keep it locked down as much as possible. (Which means little Internet use... which is arguably a feature of the process.)
If the manufacturer doesn't support the software anymore (or better yet, is out of business) the odds of malicious updates go way down.
My understanding (as a very amateur astrononer) is that it's an entirely different sort of scope - very wide field, with the ability to track extermely faint objects, rather than magnification of a much smaller field. I.e. we'd need to build and launch another immense scope to get the same sky-mapping ability.
It's not just "any individual with a telescope" though. It's stuff like the Simonyi Survey Telescope, a set to map the southern sky down to below 27th magnitude that's in trouble.
Except... I find I get more useful results from bing, ddg, kagi than I do from Google. (Not great results, but reliably less contaminated with pure junk.) Obviously, my personal search habits aren't going to match those of everyone else, but a year ago this was not the case.
If you start thinking that CEOs aren't special and unique, then you might start thinking they don't need to be paid 350 times what the average employee does.
If the manufacturer doesn't support the software anymore (or better yet, is out of business) the odds of malicious updates go way down.