Could an API be used to login and have the fields automatically update with owned games? I know GOG games does something similar for their app GOG galaxy and they track xbox, humble bundle, epic, PlayStation, steam, etc Totally agree though on digital games personally are not top of my list BUT as time has gone on things like the Xbox 360 servers which are going to be shut down in one month (End of July 2024). Its nice to know before its to late as other consoles have and will continue to shut down their services as time goes on sadly. 

Any update on this idea?

not sure how this doesn't have more votes 

when purchasing games or cross checking my collection it would be great to see if I already owned it on PC, Xbox, Playstation, Nintendo, ect the list goes on. I own 600 plus digital titles I don't need duplicates that take up actual space. 

Well that anonymous comment is me but wasn't signed 😕..... dumb system. Any like I said ...

Super interested in this idea since I own more digital games e.g. Steam, all those Xbox LIVE games for gold games they give out every month, ect. I would like to keep track of my digital library so I don't purchase duplicates of something. Plus some games only came out digital and it's nice to know if I have the entire series. 😁

I would also like to add that having a dark mode helps save power too i.e. smart phones and laptops that run on batteries  . Added perk along with looking cool and easier on the eyes.