btop is not Bazzite specific, it’s just preinstalled on Bazzite. You can install it on pretty much any distro.

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Seems like the website you’re trying to access is using HSTS, which means it has told the browser “if the SSL is invalid, do not proceed”.

If the same issue occurs across multiple devices, I would be inclined to think that there’s some problem with the website.

Kinda late by now, but I think this was because someone first machine-translated Abstract to Chinese, which typically means 抽象 (thus being the pick for the machine-translator program). This was then machine-translated (badly) again to English, causing the pumping elephant nonsense.

This is for file sharing, while Syncthing is for file synchronization. While you could use Syncthing for file sharing as well (and I have used it for that before), it’s definitely more complicated to use, and requires a bit more setup.