White oval far up in sky, with a zig zag motion from cloud to cloud.

It was Friday, November 5th, 2021, at 4:20 p.m.  I was working on a car on my driveway, and I took a short break, and laid on my back to look at the sky for a minute, something I often do.
I saw what I thought was a jetliner, way far up in the sky.  Something looked a little strange about it, so I kept my eye on it.  No contrail at all, for one thing.  It was just a tiny, white oval shaped thing, just like a jetliner looks when it's very high up.
Then, it stopped.  Then, it reversed direction, instantly.  Then it zig sagged several times like that.  There were wispy clouds in the area and it seemed like it was going from one to another, as though it was trying to hide a little bit.
The sighting lasted only 15 to 20 seconds.
Also saw something a few minutes later.  It was shiny, and lower then the first object.  Looked similar to Mylar balloons tied together, except that it appeared more solid and stiff, rectangular and metallic.  It slowly drifted to the east.  A military fighter flew past a few minutes later, seemed like it was going slower then usual.  Don't know if it was a coincidence or not.