I'm currently monitoring Wonder who are apparently spitballing a harem of (sometimes twice-)failed food businesses together under some kind of faux-tech banner for an IPO funded by Accel, Alpine, Bain, CAZ, Dragoneer, Forerunner, Fubon, GV, Harmony, Jefferies, Kuvare, NEA, RBV, Watar. Buying other businesses they claim 'growth' through site count. Billions down, but no sign of cashflow positive operations.
That's still completely separate. It's bog standard PE, not VC.
Investment banks are always involved in the IPO. That's not going to get Wonder into the Russell 1000 or anything like that.