especially if your talent level is validated by a big tech name brand on your resume

This is unironically the best way to find a good WLB while working on interesting problems. I switched from a startup with great WLB to a big tech with worse WLB because I recognised that the brand name on my resume will open me up for more interesting work with better WLB later on. It sucks for me now, but I'm hoping it'll pay off soon enough.