Yandex is much less restrictive, they don't filter out as much for adult content, copyright threats, etc. And they index (seems randomly) some file hosters and other things you won't find with other search engines. Just make sure you turn safe search off in the settings, the default is "moderate" unless you go in and change it.
Their image search is much better than others, especially now with Google Lens and Bing becoming so limited for adult pictures. But still sometimes only Yandex or only Google will find an image result, so I usually search both. I found
this extension that made my life so much easier, it does a lot of helpful things but the main one is to reverse search an image from the right click menu

The only issue with Yandex image search is they can be slow to remove old listings, so sometimes pages will not be there anymore. I actually kind of like this though because preview images can help me with hard to find content even if the link died.
I can't remember which one, my downloads folder is very disorganized right now. Also I usually add to pikpak and dl right away and then delete from pikpak. But like I was saying before, I do not find big folders, I was just searching for something by different ID #s and I found the share folder on Yandex. But always I find just the single collection (images folder+videos folder, basically like you would find a regular torrent or forum download).
There is one myfans girl I wish I had some of her stuff, but it is possibly controversial so maybe I just wait and see in the future