Roomba? It takes less time to just vacuum the place than it does for the fucking vacuum to realize it’s been humping the same chair leg for most of its battery charge.
If you are willing to put in some work, Valetudo is fantastic: https://valetudo.cloud/
My two robot vacuums have been working for 5 years with no intervention other than emptying the bin every 2 weeks and dusting off the sensors when it complains.
Assistants?
Same as above, if you are willing to put in some work, Home Assistant includes a voice assistant and they ship devices now with everything preinstalled so you can plug in and go: https://www.home-assistant.io/green/
It makes no sense for a government/military to use a proprietary system made in another country when there’s a very strong movement inside of said government for an open system. They have incredibly smart people at SUSE, Manjaro and KDE right on the inside and you are telling me they can’t do better than hitting subscribe on Office365?
Assume the EU and US have a conflict, now the EU is stuck with an entire ecosystem made in the US. Assuming they don’t already have all your internal data, they can just get it with a single click.