The "branding" should be treaded lightly.
I used GreenBrowser + Proxomitron exclusively from 2003/2004 all the way thru 2017/2018.
Tabbed browsing using the IE6 engine long before tabbed IE7 showed up (company forced IE at the time).
Company would prevent "installs" but I could run "portable" apps without issue (don't tell the IT guy).
That worked for me for a VERY long time.
But... Proxomitron was "high maintenance".
I was fine with all of the "maintenance" - it was the web MY WAY and not the way that "script kiddies" threw it at me.
But... It became too much of a hassle to edit and tweak for a couple credit card websites at the time.
That led me to abandoning GreenBrowser + Proxomitron.
My search led me through Maxthon, SlimBrowser, Vivaldi, Chrome, Chromium, Iron, Opera, Firefox, Flock, Waterfox, Icefox, IceDragon, Avant, Sleipnir, among many others I'm sure that I'm forgetting as I look back.
Sleipnir and Chromium lasted the longest as far as my exclusives at the time.
I eventually landed on a precursor (?) to New Moon.
I forget the name of it but the "branding" was a RACCOON waiving his paw.
Sounds "trivial" perhaps, but the RACCOON turned me away from that browser.
Despite its functionality meeting ALL of my needs.
The "branding" cut my time short with my trial of that browser.
My home CPU is an i7 and came with Win 10 LTSB - would never do anything 10 without it being LTSB.
But I opted to keep XP x64 instead.
My computer can "handle" more resource-hungry web browsers - but it is NOT my "preference".
So I ended up still hunting and stumbled into Roytam's builds.
Ran v28 for a while, but reverted in favor of v27.
Then arrived Arctic Fox Win32 - been my exclusive ever since.
Edit: I'll add this. One of my gripes against v28 is because I do *not* 'want' to update each and every week. That borders again on "high maintenance". I would prefer kind of knowing which weekly release is best associated with the "stable" upstream versus the "nightly" upstream. I don't really have a need to update my browser each and every week.