So now that my trip is over I will give a report as to what happened.
Leg 1 Boston to Munich A380. Plane landed on time and the transit to the next gate was painless. I had to go through Passport control, but not security and it took all of two minutes. The border guard looked like he didn't care, asked my two questions and stamped my passport.
Leg 2 Munich to Budapest A320 Got to the gate with plenty of time to spare. The loading of the plane was a cattle call with everyone scanning their tickets themselves and almost no intervention from the gate staff. I had seen nothing like this before.
While I made my flight no problem my checked bag did not. I was told I could have the bag delivered, but it could take 5 days and I was town for 4. I decided to return to the airport that evening and pick it up, which I did.
Leg 3 A320 Vienna to London Heathrow There was an issue with the British Airways app and the website. It stated I didn't have any checked bag credits, but I did. I went to the airport early to resolve this, but nobody showed up until 2 hours before the flight. It turned out to be nothing as the women at the counter said they were having computer issues. I was also concerned because the border control people were suppose to be on strike at Heathrow, but if they were it didn't matter as I had a US passport and used the electronic gate and was in the country in 30 seconds.
Leg 4 A320 London to Frankfurt my flight was 10 minutes late getting into Frankfurt and we stopped before the terminal. They brought stairs and a bus to bring us to the terminal. As it was my turn the bus driver said no more, but I had been talking to the Flight attendant and she asked if they could do one more for a short transfer. I was allowed on. I walked what felt like miles to my gate, which was well marked and I never got lost. I went through passport control and right to my gate. No USA TSA there.
Leg 5 A340 Frankfurt to Boston Flight happened to be slightly delayed because they had to change the plane due to some issue. The Lufthansa app said my bags were on board my flight and off we went or so we thought as a passenger didn't show up and they had to remove his bags. We finally left and the plane was moving. With a late departure we ended up 30 minutes early in Boston.
Boston to Home. BUS What a mess. There was construction causing my bus to be 1/2 late then there was a 5 car accident stopping traffic for at least another 1/2 hour. What should have been a 1 hour ride was closer to 3 hours, but I got home safe and sound and had a great trip.