VEGAS Pro is one of the NLE out there besides Resolves, support ACES workflow. The only downside is, you cant customize the IDT. You're pretty much stuck with whatever color spaces preset in VEGAS.

One of the workaround is to modify the config file by replacing some stuff. Which in this case, I want Slog2 to be using Sgamut3.cine. So all i have to do is modify the file and make the SLog3 color spaces read SLog2_to_linear.spi1d instead. You can read more here (My conversation between someone who know about ACES very2 well)

https://community.acescentral.com/t/how-do-you-create-or-find-idt/3300

But the moment I save the config file, it will just broken. It wont show up anything in VEGAS Pro ACES menu.