I love the convenience that today's wider internet access, speeds and technologies have brought but I agree that one of the worst aspects is the overreach of social media.
Another huge potential problem that I believe is looming is linked to the global risk to cybersecurity (which also takes in the issue of possible sunspot activity that Beth Sarim mentioned)
Back in the early days of the internet, right through really to only about 10 years or so ago, critical systems still retained manual backups. Banks, emergency services (911 in the USA, 999 in the UK, etc), social security systems and many others were bringing in computerised operations but they still retained some fallback manual systems or alternative means of access for users in case of critical failure.
Today that's more or less gone, or on the way out, which I fear is actually making our increasingly tech-dependent world more vulnerable not less.
We've already had numerous warnings from periods of hacking activity or outages which have affected financial payments, traffic control and other critical systems in different countries at various times. To date, most of these issues have so far been inconvenient rather than catastrophic, but I suspect it's only a matter of time, with how dependent we are becoming on technology and the fact that so many analogue or manual backup systems have been totally removed, that a nation somewhere may suffer a complete meltdown, either accidentally or caused by sabotage.
A related issue is how many governments and corporations have used increased technology to restrict choice. For example, in the early days of electronic payment it was sold as a convenient alternative way to pay for things that increased customer choice. But now, increasingly the 'old' ways of payment (cash, cheque, etc) are being, or have been, completely removed in favour of solely card or online. Many shops won't take cash now, only card and contactless, and where the option to pay cash remains it's being swiftly marginalised - supermarkets increasingly replacing their humans at checkouts with self-service points which at first used to take cash or card, but often are being 'upgraded' to card only ones now.
Ultimately, that's a restriction of customer choice and, linked to my earlier point, makes shopping more vulnerable to future system failure. Imagine the trouble that could be caused if/when all cash payment is gone but a technical failure or cyberattack causes all store checkouts to go down?
And don't get me started with the nonsense of cryptocurrencies and NFTs...