Bolduc, the Islanders' second-round pick (57th overall) in the 2019 NHL Draft, scored 43 points (11 goals, 32 assists) in 61 games this season in the Quebec Major Junior Hockey League. The Laval, Quebec native split his fourth QMJHL campaign between the Blainville-Boisbriand Armada and the Sherbrooke Phoenix after a mid-season trade. Bolduc's 43 points marked a career high and were tied for the eighth most amongst QMJHL defensemen. His career year also featured 19 power-play points (3 goals, 16 assists), two overtime goals and a plus-13 rating.