It is only in more recent versions of Dashboard and more recent mobile browsers that Dashboard has become more mobile friendly. Of necessity, it is rather "heavy". But as long as you keep the dashboards reasonably simple, you shouldn't have too many issues. Takes a bit of trial and error to get right if you aren't a web design guru.
Personally, I prefer to use dedicated web pages with a more custom design approach as these tend to be faster and more compatible with mobile browsers.
Truthfully though, I more often create an interface using Telegram as this is secure over the internet not just locally and has great mobile support in addition to desktop. You are more limited though so it is good for simple command/response interfaces rather than full dashboards. I often use Grafana to do fancy dashboards.
