The Spectre bandwagon may have passed, but the problem remains. Even if all future chips are fixed there are going to be vulnerable systems out there for years to come.

When buying new hardware it's a good idea to check whether the CPU is spectre vulnerable. There is a list of ARM CPU types which are vulnerable on the wikipedia page for Spectre. Things which appear faster and have more cores may actually be worse from a security point of view.

https://arstechnica.com/gadgets/2019/02/google-software-is-never-going-to-be-able-to-fix-spectre-type-bugs