I think that is far more that people like the other closed source launchers less, and each launcher potentially adds it's own stream of notifications and adverts to their system so there is a cost to having multiple active even if the PC resource cost is practically undetectable.
Furthermore if comparing game launches and related issues to political climates, I'd consider all the current closed source ones to be the same in those respects. Also we are not subject to several local political climates at any one time in that way (though we are when looking at a wider scale, of course).
> Or have videos/TV all on one subscription service
While there are other issues (each service tracking you etc.) this is more due to the fact that each service charges what we used to pay (in fact more, as in some cases prices have gone up by more than general inflation) for a single service that provided the same amount of content that they cared about. This doesn't really equate to trust on political climates (except where commercial greed is considered a political matter).