The issue is that the type of person who would want to use something like StartOS or Umbrel... They probably don't want to take the extra steps to move out the Bitcoin node. There's probably some security concerns as well... StartOS can probably do a better job at security if it's all running inside itself.  It starts to get complicated (which breeds mistakes) and I find myself wanting to skip it all and just use Bitcoin minimally.  No lightning... No ecash... Just as a store of value until I'm confident of the tools and software to run 2nd/3rd layers on my own hardware securely and redundantally.