As of this writing, there is no formal rule written in the style guide for what specific entry art should be supplied to digital game entries, so this is an unwritten rule for the time being.
Thanks for clarifying.
I already knew there was no official rule; I checked thoroughly just the other day (including bookmarking that exact link you provided so I can easily check up on it later if need be), just in case there had been any official ruling or clarification before I started adding more listings or editing others. That's why I used our interaction last time to guide me, since that's the only official statement I have seen regarding it. When told "ideally... it should be this way" then I will try to go to the extra effort to handle it that way if I can. Especially since the style guide is usually incredibly specific on doing things a very particular "right way" so if something is said to be the "ideal," I'll try to help in contributing to that "ideal" process if I can, when it's not an unrealistic hurdle for me to do so.
Especially b/c we ended that interaction with you at least showing some form of curiosity in my method for confirming the official listings in the Wayback Machine:
How do you easily determine which results link found on Wayback Machine actually represents the store page so that art can be confirmed?
which I guess led me to incorrectly assume there was an official desire to confirm the "official" cover art or product listings if possible. So I felt it was still worth my time to attempt to use the accurate cover art when making edits or adding new listings.
Anyway, since our last discussion was specific to the now unavailable marketplace.xbox.com - where the official 360 store online listings (that included Description/ReleaseDate/Publisher/CoverArt) can no longer be publicly accessed, other than through
https://web.archive.org/ backups. Meaning, accessing or confirming the official listings and art requires a much trickier method, and so in that case, I
100% understood the hurdle something like that would impose on the general user or mod to find or confirm the official accurate data.
However, in regards to my post right now - related to Nintendo and the Switch eshop - none of that is the case. So I wasn't expecting such a hurdle here

As of now you
do not need specific hardware (like the console) to confirm/see the actual "Cover Art" on Nintendo's website. It is publicly visible for
everyone (not just owners of the game/console). While people who've actually bought the games can find the same cover art images on the website under "
Order history" or "
Virtual Game cards," everyone else can publicly see the exact same art online too. The same image used as the official "Cover Art" on the console, is the image that Nintendo uses for all the "thumbnail" images all over their website:
- Seen while Browsing Games:

- Seen under "More Like This" or "Recently Viewed"

- Seen on the "Top store products"

- Seen on the contents lists of "Bundles"

- etc.
So I just figured this console/system wasn't quite the same in regards to an "unrealistic hurdle" as the inaccessible 360 marketplace product listings. Especially b/c at the end of the day, I assumed that it wasn't an unrealistic hurdle to look at the bulk of 2,602 listings in the category here on VGCollect, and see the majority are consistently using the square image format, and use that observation as pretty good evidence to make the assumption it is likely the accurate format for these games.
Meh, I'm just usually a stickler for keeping my collection consistent and/or "technically correct" if I can manage it, and that's one of the reasons I've loved VGCollect in having very specific listings for niche versions of different physical games, and having very specific style rules for how to list and organize such games. So it can get frustrating seeing some of that effort get reverted in less than consistent manners, so I figured it's always worth coming to the forums to plead my case, and document my sources, and share links, and examples, to methods others (users and moderators/staff) can use to find, collect, or vet the data as well... in case they were actually curious to do so.
At the end of the day, that's all I can do, so I suppose no worries from here on out with this one. I'll just stop putting in the effort.