> Absolutely no excuse why we haven't done it since then
Well there is the fact that Apollo had (at its peak) something like 400,000 people working on it and involved a spend of $164bn (in 2021 dollars) [0]. I think we could get back to the moon if we had that sort of commitment.
I'm always amazed by this image of how they accomplished the rendezvous with the ascent stage. Note the poor condition of the aft panels:
https://history.nasa.gov/alsj/a16/AS16-122-19533.jpg
Absolutely no excuse why we haven't done it since then when they did it with that, and our technology is so much better now.