I can't see a thing on the first one....
The second is better.
"Behind the sun" - given the brightness of the sun, and the smallness of the blobs of light you are calling 'UFOs', it's unlikely that they'd leave a distinct darkness... as well as the objects being light themselves.
the conclusions you are intimating don't make sense - the sheer size of these things to actually be going behind the sun would be so incredibly massive, even if the sun was only a few hundred miles away (Flat Earth theory).. and the problem with that is if it were true, then people all over the planet would see this!
How about using Odysee? It seems to be alternative theory friendly.