Imgur has been going downhill for years and keep making it more and more difficult to just host images, since the original owners sold it to a sleazy marketing outfit they no longer want it to be an image hoster but "a community" to sell ads for.
I for one plan to self-host on my own server space. The requirements for this are basically not the same as for "Photo Gallery" kinda software (so no Immich for this), you want someplace to quickly upload images, then easily find the one you're looking for and get a direct link to the image, like Imgur used to be.
Initially considered PictShare since it would be dead simple to set up (no database makes this super simple) and those filters are a neat feature, but in the end decided i also wanted tags and metadata which requires a DB, so for now I'm inclined in the direction of Chevereto, although it's not set in stone. If someone has a good suggestion for software to self-host images that fulfills these requirements, is easy to set up and maintain and is not too heavy I'm VERY willing to hear it.