Imgur's compression is awful, and especially on mobile, has a ton of dark patterns for logged-off users or anyone not using their app.
Personally I'm using Instagram for casual "here's my life" photos where I don't care about compression or any of that, Flickr for more curated public photos, and Google Drive as a secondary private backup.
Christ. It's strange to recall Imgur's genesis on Reddit as a simple, lightweight replacement for all the obstacles and mess that came with Imageshack/Photobucket/other popular image galleries at the time. Shame it eventually bloated into the thing it was meant to remedy.