"No, not really," Gallant said when asked if the game felt any different emotionally. "I just coached another game. It wasn't much fun early when they went up 2-0. I thought it was a sloppy game the first half of the game, and after that I thought we played really well."
WATCH: [All Panthers vs. Golden Knights highlights]
With the win, Vegas (21-9-2) moved into first place in the Pacific Division. The Golden Knights and Los Angeles Kings are tied with 44 points, but Vegas has played two fewer games.
"I have no idea what the standings or how many points we have. I don't look at that stuff," Haula said. "It's just day-by-day. We have fun and winning makes everything fun."
Haula redirected Jonathan Marchessault's shot past James Reimer for his 12th goal of the season and extended his point streak to six games.
Colin Miller, Nate Schmidt, Marchessault and James Neal scored for Vegas, which is 13-2-1 at home and outshot Florida 40-18. Malcolm Subban made 16 saves.
"It's great. You always want to beat your old team. Especially for me, (Reilly Smith, Gallant, assistant coach Mike Kelly) ... it's our old team and we wanted to get that win," Marchessault said. "We have a good thing going on right here."
Marchessault scored 30 goals for the Panthers last season and was chosen by the Golden Knights in the 2017 NHL Expansion Draft on June 21. Smith was acquired by Vegas in a trade with Florida the same day.