Blank 2D project currently looks like attached image. Make it a daunting task to find ones own sprites. Unity 2021.3.12f1
If I remember correctly, what you search isn’t saved either; so even if you name your sprites to find them easily by adding something like “Sprite_” to the start of each name, it’s still a pain to have to search that each time.
I think this might just be an error. Other unity packages are not listing images.
This toggle should allow you to filter out the package content. When it is checked, no package content should be visible in the object selector. If this is not the case, please file a bug so that we can take a closer look.
I just checked the latest version of LTS 2021.3.16f1 and the toggle doesn’t hide UI sprites for Skinning Module or PlasticSCM
Hello @enhawk , a similar issue has been brought to my attention previously and I’ve raised the issue here for tracking:
Still an issue on 2021.3.20f1. Extremely frustrating.
Same here using 2021.311
Still broken 2022.1.23f
Update:
The team is in the process of delivering the fixes for this issue in the upcoming Unity editor versions, which can be tracked here:

