Huh? If anyone literally says God is just straight-up "featless" they are actually blind wtf.
He has no direct power/speed feats, but he does have a lot of hax feats and some possibly implied feats. He clearly has energy projection considering that he gave both the manipulation of energy as well as the energy itself to HE, and it's heavily implied he created Vaccine Man which uses an energy Murata very directly suggested is the same that HE uses, and Black Sperm questions if the energy which seems to be manifested by HE without any limit comes from somewhere else, directly implying that God can tap into an infinite or virtually infinite pool of energy which he can give to the ones he "blesses". (Imagine if God brings Boros back to life and empowers him so he can have a rematch with Saitama, and is actually stronger than Saitama was in their first fight, but Saitama's growth allowed him to still far surpass Boros, idc what the Boros deniers think that would be so god damn sick)
Anyways, when he "blesses" someone he gives them energy projection, but when he chooses someone to represent him as an avatar such as in the case of Garou...well we all know how that is. And whomever he gives any power to, he has pretty much total control over, and can transmute them at any moment in addition to taking away the power he gave them. It's not out of reach to say he can probably use the hax he gave Garou considering that...like, he gave it to Garou
. At the very least, if he doesn't have the copying power, I'd expect God to have the same knowledge of universal energies and should be capable of performing similar abilities to Nuclear Fist and Gamma Ray Burst (probably to an even more powerful extent than what Garou produced). I'd legit bet money that if he does fight Saitama he's gonna summon actual black holes and shit too. Imagine if Saitama just punches a black hole or something I would be laughing hysterically on g.
Considering all of the statements and implications beyond the hax feats he's actually, directly shown, I have absolutely 0 doubt in my mind that he'll be a reality warper when he's unsealed. He's been built-up as such a hax beast and possibly the legitimate creator of the Earth if not reality (which is probably why he's quite literally just named "God"), likely the creator of the Limiter concept, and so on, I would be shocked if he wasn't a genuine reality warper. He'll probably be able to use the hax he can use on those he blesses, but on everyone, among other things. But I also expect him to have a gargantuan amount of raw power probably higher than Saitama's initially.
I mean imagine a fight between him and Saitama where God keeps trying to use his hax but Saitama just resists all of it, and it comes down to God deciding he needs to be simple with it, amps his physical form, and just starts brawling with Saitama in a full-power battle. My hype levels would elude description while reading that ngl.