Not at all. But "moved" doesn't really apply to pictures in Photos. In Photos, pictures are organized in albums.
An album is a list of pictures that you want to see together. You can make an album and then drag any picture to it, and it will be added to the list of pictures for that album. Then, when you open the album, you will be able to see the pictures that you listed. The pictures are not "in" the album-- it's just a list. This is cool, because a picture can be listed in the 1974 album and also listed in the Grand Canyon album, for example. And, since it's just a list, they don't take up any more space no matter how many albums you list them in. There aren't more pictures-- just names on more lists.
The Library album is one of the preset lists of all your pictures. Some of the preset albums list by capture date; others list by import date, etc. Those are preset, and you can't remove pictures from those lists. But if you drag a picture thumbnail from the Library list to the 1974 list, you can see it in either list.
If you click on a picture in the 1974 album list, and you hit Delete, then the picture will disappear from that album's list, but it will still be in your Library. If you hit command-Delete, then the picture will be removed from that album and from all album lists and placed on the "Recently Deleted" list. If you you delete the picture from the Recently Deleted album list, then it will be removed from your Library forever. Or, you can wait a month and it will disappear on its own.
As Old Toad says, the albums are like playlists of music. A song can be on many playlists.
So, we organize our pictures in albums. Photos makes a stab at organization with Memories and all that, but it's the albums that make Photos useful at keeping track of your pictures.