A bit like working from home helps with "deep work" away from the office, being at home with partner off on some travel helps with "deep home", to really appreciate a quiet place, and be full of love and welcome when they come back.
I fully agree with this, though I'd prefer it be more on a voluntary basis, e.g. by travelling alone from time to time, having a couple of hobbies separate from your partner, and friends that you hang out with. Not forced upon you by work.
Being forced to be away from your partner 25% of the time by work is a bit much, unless you're a travelling consultant or flight attendant or something.
Yes, and its generally considered one of the most unappealing aspects of those jobs. Its one thing when the job requires it, as is the case with the examples you gave. When it is completely avoidable as it would be with many of the white collar jobs that are the focus of this thread, it's a weak justification that long-distance truckers also have to put up with it.