Gloi
Too little time, too much to read.
That is all very positive. At least he was loved at sometime in his life.With regards to the passport it appears to have the one owner on it from when he was a colt. There are about 3 or 4 vaccination stickers but the last one was 2022. Other than that not much info.
The vet did not seem to see anything obviously wrong with him from her quick look over.