Lots of difference.
Unlike beef, bison doesn't marble. And unlike leaner beef brisket, say a Select brisket where I'd suggest cooking at higher temps, bison brisket meat (well, bison if any cut) siezes at high cook temps and toughens.
You can low/slow the cook from start to finish; you can low/slow till 145 or so then wrap in foil to finish; you can do the same then, when foiling, add liquid and finish it as a braise (at the same or higher temp).
Do not assume bison brisket will temp as tender at the same point as beef. It's possible, but it is also possible that the brisket will be tender at 160, 165, 170. It is essential that you go by feel. Test first at ~160 and get a sense of it. From how it feels at that point, gauge how often you should test thereafter (provided it's not already tender). If in doubt, test after every 5-degree rise or 15-20 minutes, whichever comes first.