A decade ago it was Firefox, but it kept on getting slower and slower. I held up as much as I could before I moved tho Chrome but there really wasn't any choice. Then, when I got fed up with Google knowing more about me then well, me I started looking for something else.
IE? insecure. Edge? nice features, not really secure. Opera? abandoned it's own engine and is now owned by a Chinese company, make of that what you will. Pale Moon? it's based on the Gecko engine I left behind when I abandoned FF a decade ago. FF wasn't stable and was slaw a decade ago, and most privacy orientated browser that are spin offs of that particular engine, while they might still support the old extensions suffer from the same slowness, crashes and bugs FF did. Vivaldi? no android browser and I found it buggy, also, most of the features it boasted were already in M$ Edge, on windows at least there is no reason to use that browser over edge, and there isn't a reason to use Edge in the first place. Firefox Quantum - actually a pretty decent browser, almost as fast as Chrome if not faster in some instances. Somewhat more secure though... Mozilla hasn't been the friend of the FOSS community it has historically claimed to be and a series of forced adons have made be weary of FF Quantum and Mozilla in general.
So, what's left? terminal browser... but I have a life so no thank you and Brave. Brave is good. When I first tried it it was the weak before they release their first Chromium based browser. The brave that was based on Muon that in turn was based on Electron that in turn was based on Chromium that in turn is the open source version of Chrome was... acceptable. The new Chromium based browser is actually fairly decent. And since I've started transitioning to Solus from Windows 10 it's proven to be fairly reliable on both platforms. The fact that I don't need a separate browser to visit the dark web is ok - and since I don't actually make use of the "dark" part of the dark web but use it mostly as a way to circumvent local restrictions it's more then enough for me. It's not perfect though, and for actual anonymity TOR browser on Tails is still needed and even for banking and such I'd recommend FF Quantum with a few adons over Brave. But for a, install and surf kind of browser, Brave is more then fine.
This all being said, I never tried Epiphany or any of the other actually Linux browsers. Are they worth a try?