There is a mobile app(UntrackMe) that does a similar sort of redirecting https://fedilab.app/wiki/untrackme/

Lutim works pretty okay for me,

Lets you upload an image without any account and spits out view, share and download links for it, has a toggle for how long to keep an image before deleting it, or keeping it indefinitely unless manually deleted, and even strips exif tags and has an option for encrypting the image, and is fully foss

If all you need is a place to upload images to that you can then link to in a post this serves its job well enough

https://lutim.ggc-project.de/