Thanks, practically the 95% are multi platform. In PeppermintOS appears other options. Furthermore exists Maxthon and SeaMonkey (not sure if they are available for Linux) …
Lightweight browsers is a difficult area.
The lighter browsers tend to be out of date and not work well
with modern version of html.
The lightest is Dillo… you will find it very limited… for example it has no inbuilt search engine… you have to go to the google URL. It will not display itsFOSS forum page properly. It used to work well 20 years ago… that is the problem, not updated to suit modern internet.