[hannasanarion]

... because dropbox is cross-platform, user-friendly, doesn't require use of the commandline or configuring an upstream source, has a web interface, simple sharing with others, etc etc etc etc

Those kinds of "can't you just..." or "why use [easy user-friendly popular thing] when you could [complicated nerdy feature-bare alternative]" answers are rarely helpful and typically come across as condescending.

Yes, there are complicated containerized or fancy disk volume spoofing workarounds, and there are also alternatives (I like SpiderOak), but none are as simple as using dropbox was.

[Fnoord]

I got 1 TB for free with TransIP STACK. They use encryption on their end, I use on mine as well (Cryptomator). Its cross-platform (basically their clients are a fork from OwnCloud/NextCloud), there's a web interface, simple to share with others, and it works on every filesystem AFAIK. No vendor lock-in.

The only thing Dropbox has going for it, is that it was the first one which was both easy and popular when there was demand for it. That's all. Network effect example numero uno.

[marenkay]

This was merely a technical question, whereas your reply was... far from appropriate.

[another-cuppa]

That's the risk you run when you choose convenience over sustainability. If you spent some time and used syncthing you'd get something that won't just disappear some day.