Prometheus got the whole look wrong. Everything was all glossy and high-tech yet set before then events of Alien \ Aliens.
Prometheus was basically showing the tech that the top people got.
IIRC it was mentioned for example that the "autodoc" was a one of a kind prototype that on it's own cost billions, by around the time of Aliens Resurrection there is a story (Alien: Sea of Sorrows) where it is mentioned that a mining colony has one of the autodocs but it's only for extreme emergencies because of the cost.
Imagine walking into say the offices and personal megayacht of a billionaire investment broker/businessman who happens to own an airline, oil and mining companies, now imagine walking into the accommodation and working areas on a coal mine he owns in some third world country.
Or say the personal jet of the owner of an airline compared to the the 30 year olds ones that they have in use for the budget short journey arm of their airline where they can get away with stuff that barely meets the minimum standards and can fill the aircraft to maximum allowed design capacity because the passengers are only going to be on it for an hour or two at a time (the owners jet might have a design capacity of 200+ but only 20 seats, whilst the same version in his regional company might have 180+).
As I said earlier in the thread, it ties in completely with how WY run things, the top execs at "home base" get the lovely new stuff and have a staff just to polish stuff and clean it properly when someone leaves a smudge on a surface.
Meanwhile the actual staff doing the work at the offices get budget gear that is used till it needs replacing, and the people actually out doing the dirty jobs such as hauling raw materials around are lucky if the company will authorise a repair for a vital system before they're running on the backup, let alone have enough staff to keep the equipment looking clean.
Another way to look at it is it's like the Red Arrows/Blue Angels display teams, they are RAF/USAF, but the care and attention their equipment gets tends to be on another level compared to what the normal units get, with everything polished and maintained to well above 100% of normal operational standard.
IIRC the Blue Angels for example apparently have/had a team who go and look at the aircraft of the type they are currently using and can/will requisition the best examples from any other unit and then refurbish them/fully clean them up including things like a complete removal of all existing paint before they're given the colour scheme of the unit and will get the paint touched up/redone whenever it gets damaged, as opposed to when it absolutely has to be done or during a major refit.
In real life you can also see this to a degree with the Space Station, it's expensive to get stuff up to it, and they need what they do take to it to last, so it's nowhere near as nice and shiny as say the officers of Boeing or the companies that make stuff for it or even a new commercial aircraft, instead it's made of materials that were chosen because they're durable, known to be suitable, long lasting, and won't get replaced until they have to be.