I have been keeping my eye out for no neutral, matter enabled, smart switches for the 6 switches in my house that don’t have a neutral wire (I’ve only been buying matter enabled smart devices when at all possible). I just saw that Aquara now sells the h2 in a US version.
Have you used this in your home assistant setup via matter over thread? How has performance been? Have you been able to do anything with that second button via home assistant?
TIA