Ok, here are lots of raw info about booleans and chamfers:
3ds max boolean chamfer – google
https://polycount.com/discussion/192325/3ds-max-booleaned-chamfers-almost-not-relevant – sometimes you want use fusion360 or other CAD for that sorts of things
boolean dynamesh workflow – google
https://www.youtube.com/watch?time_continue=26&v=TXRK0SYpk74 – very cool boolean plugin
https://polycount.com/discussion/168610/3ds-max-zbrush-proboolean-dynamesh-hardsurface-workflow-tutorial/p6 – a nice polycount thread about dynamesh – boolean workflow
https://www.youtube.com/watch?time_continue=1&v=FIiCMj_8u4o – more boolean tuts from polycount
https://www.youtube.com/watch?v=OSKwyj2VKKk – lots of ways to chamfer booleans inside zbrush by michael pavlovich, it’s worth a look. I used that technik in 3ds max last time. I made booleans and then a couple of insets and then I was able to make chamfer at certain edges.