They don’t care if you don’t answer. It costs them $0 to text you.
My profession makes me a target for a wide variety of advertising and my phone number is required by law to be listed publicly.
I already don’t. Mostly because Google Messages filters them in a way that I never even see them unless I’m actively looking. It was only when I got an iPhone that I realized exactly how horrific it is.
SBC (specifically RPis) got more expensive. x86 got more powerful, more importantly more efficient, and cheaper. Also X86 has more software built for it than ARM.
There are a few X86 SBCs now though.
If you already have SBCs and they’re doing what you need, I see no reason to switch.