Yes, if video games are going to be shown as a roll up in Vega they MUST be in a volume record so that staff or patrons can select the correct version (Switch, PS4, PS5, Xbox One, etc) to place on hold.
I would prefer that video games not be shown in a roll up. I think it will be easier for patrons to have an individual record for each version.

Since this was listed as a known bug at IUG, an ETA update would be appreciated. The way the logic currently works, video games are sometimes rolling up with other materials in addition to other console types. While having each version of Minecraft rolling up so staff only have to choose an edition (console) can be useful, just placing a hold on the 'first available' for that title is not a workable solution for customers, since the 'first available copy' might not work for the console they have.