Boss pedals have a buffer (as many others do) and that can help in some situations, but not others. .
I have one pedal that’s really picky about the signal it gets, and only really had good results with a reamp box for that particular pedal.
YMMV but a buffer isn’t remotely like a reamp box, buffers are really just there to manage the cumulative capacitance of a signal chain, and they do a great job of that. I’m guessing the fact that they lower output impedance is why people are using them in this way, but I can’t imagine it’s going to be a universal solution.