Prior editions used to treat lifestyles kind of like a threshold. At a certain lifestyle, certain things are presumed to be available. One of the most relevant-to-players things was clothes. To get into a fancy club, for example, you might need either to have a high lifestyle or spend some out-of-pocket nuyen on a fancy outfit above the means available at your actual lifestyle to LOOK like you have a high lifestyle.
It's a concept that 5E could stand to bring back, imo.
Not sure however that it'd be beneficial to provide an explicit laundry list of things you have at given lifestyle tiers. Because once you have such a list, then there's only going to be quibbling over why this certain item is or isn't on it. A blanket tier system works well. GMs are there to provide discretion; a GM can decide fairly quickly and easily (much faster than flipping through a resource to find a hypothetical list) whether any given asset is available to a shadowrunner based on lifestyle.
Of course, the GM can also still use lifestyle tiers as a way to figure out what kind of harassment NPCs might give a shadowrunner based on lifestyle. Squatters and Street lifestyle runners LOOK like they're squatters or live in the street; in nice areas they'll be watched/harassed just because of that. Medium/High lifestyle runners LOOK like they have more money than most people; street gangers and alleymuggers will react accordingly. etc.
