These oddities nevertheless remain. Why is Military disrespecting Biden?

Why not flown in via Military\Government plane like other presidents before him?

Why no 21 gun salute as all other presidents get?

Rather they shot the guns off in the way they do for a foreign dignitary.

Why did they not play the song reserved for an incoming POTUS being inaugurated like the other presidents?

Why did soldiers show him their backs and not Salute as required?

Why did two Marines fail to salute? Don't even think for a second they forgot, not both of them, no way. They had to have had an actual reason, usually in the form of an order to not do something so intimately standard.

Why is the Pentagon not sharing information with Biden's administration?

Why would the Pentagon tell Biden he isn't allowed in the pentagon?

Why did Trump take the Military football with him on AF1, and got a proper 21 gun salute when he departed the Whitehouse?

Why has no one seen Biden with the Military football or the Pentagon official that walks around holding the nuclear football?

Why has Biden not been on AF1 yet or any other Military craft, like Marine 1.