this editor is exceptional at loading files which are gigabytes in size. nothing else I've ever used comes close.
How about Sublime Text? That’s mostly my use case. Opening giant files that VSCode can’t, Ctrl-F a regex expression, selecting all matches, and pasting them into a new buffer. Like a visual interactive grep. Sublime handles big files pretty well but I’ve still managed to make it chug on occasion.
Anyway, there people mentioned UltraEdit has a "disk edit" mode, where it DOESN'T dump the file on the ram, and instead displays a chunk of whatever is on t he disk, this is how it allows the editing of gigantic text files, theoretically you can edit files of any size, maybe even infinite size.