Had a great experience with Dolphin on the Steamdeck. It supports tabs which is a great positive over the Windows File Explorer imo. (I know the Windows 11 File Explorer also has tabs but I'd rather not touch Windows 11 with a ten foot pole.)
As we're in the Open Source community here, the massive list of possible answers is suddenly rather short, I'm afraid. Explorer++ might be your best bet.
thanks all - i was looking at some awesome windows lists on github but most were for file transfer clients not file explorers so i figured i'd ask. will check all of these out today.
I've been using Double Commander for a long time. I can recommend.
I've looked for alternatives occasionally, because I'd prefer some things differently, preferably something I'd be able to source inspect or work on as well, but haven't found anything better.
I will be off topic as what I am going to suggest is not open source... But I myself looked for a long time what was the best free windows file manager and I settled up on FreeCommander.
By default UI is not nice but it's possible to make it nice enough.
I use this one mainly because : you can use it for free, dual pan, it remembers tab history between sessions, tabs can be renamed and colored.
Hope someone will suggest a good open source one but I don't think there is any :-/
Double Commander is free and open source. I've been using it for a long time. I'm not sure which one I used before, but could very well have been FreeCommander.
I'll be looking for an open-source option first today, but if not, I can wholeheartedly recommend the xplorer2 from Zakbat. I've been using it for more than 10 years and it's fantastic for me. As far as I know, this is the work of a single guy. It is not cheap, but it has worked extremely well and has been reliable for me for so many years that I can't recommend it enough. It has a free trial to test it.
Why are you stuck on windows? What's stopping you from installing a GNU/Linux distro? Much easier to replace/customize anything.
I don't mean to suggest y when someone is asking x, rather I don't see any reason to be using Windows (especially Windows 11) these days.