@Kinesis19 i am just another user, but based on a fairly recent post from the mod (see below), i believe the end goal is to improve accessibility. in short, yes, it’s going to be deprecated. however, within the aforementioned post, you should be able to find steps to compile app templates you wish to use moving forward.
it may sound counterintuitive, but one of the concerns in the past was having to wait between version releases (beta or production-ready) leaving users having to find temporary workarounds for bugs (best case scenario) or render the apps unusable for a specific purpose (worse case scenario). plus, the subsequent concern of not knowing when the next release is going public leaves users in the dark. so moving away from the platform should allow the devs at NVIDIA publish updates/bug fixes more often via channels such as GitHub and/or NGC Catalog.
another possibility that is purely a speculation on my part, is that keeping a centralized launcher, in and of itself would require maintenance and/or updates. so by deprecating the launcher could allow more focus and resources be put on the apps themselves.
the mods can probably give you more concise reasoning, so i’ll defer to them.