.jtif and .avif images

[Krikor]

Hello everyone,

For some time now, when downloading images from the web, I have come across images of the .jtif and .avif types.

For me, these are new formats; I don't remember having seen them before.
Fortunately, GIMP had no problems opening them and allowing me to edit/use these images.

Do these types of .jtif and .avif images have any advantages over those we already use routinely, such as .png, .jpeg, .gif, .tif, etc.?

Is there any place/entity that provides this type of information in layman's terms?

Thank you!