Shouldn't be "man" either because at least in Christianity he's described as the "Father".

I'll give him the benefit of chalking that up to Bronze Age societies failing to capture the transcendent nature of the sublime due to linguistic and cultural biases.

"omniscience and omnipotence" The wording unfortunately implies an agentic creature of this world.

Alternatively, God created the world as an arena, with creatures as agents. God manifests in the world through His creatures, in our quest to maximize truth, goodness, beauty. One step further, the purpose of the Son is to provide a humanly comprehensible blueprint on how to act as to maximize truth, goodness, beauty. Finally, the Holy Spirit is that which guides us in following the path the Son laid out for us.

For a scientifically trained mind, this can also be pictured as the quest to identify and asymptotically aim at maximizing the objective function that encodes truth, goodness, beauty. The stakes - a life well lived.

If it’s not an agent, then why bother it? Occam’s Razor would say you can safely ignore it, as something no effect is indistinguishable from something that doesn’t exist. Similarly, if it has effect, but no agency then it’s unworthy of any worship (putting aside just how profoundly offensive the very concept of worshipping is). No one worships gravity, and worshiping the sun is rightfully seen as primitive superstition.

As far as a deistic god , you clearly don’t believe in that, as any reference to divinely given scriptures runs counter that concept. You can’t claim its hands off while simultaneously engaging in miracles and vaguely interpret led prophecies.

It’s a weak, and lousy concept, propagated by cultural baggage.

Neither of the mentioned religions fixates solely on "believing in a man in the clouds." You're purposefully reducing the spiritual and prose content of these multifaceted, vibrant families of traditions. The person you're replying to isn't suggesting these religions don't believe in omniscient deities, they're trying to discuss them beyond the juvenile, r/atheist flat "le epic sky man" level of discourse.

Actually they literally do fixate on belief. In fact, the primacy of belief repeatedly and explicitly stated in their respective holy texts. There are multiple treatises arguing over the fate of good people that who do not share their belief, and whether mere ignorance (as opposed to conscious rejection) is enough for them to be “saved” from eternal damnation. To deny this, is either displaying ignorance or is rather disingenuous attempt to shift the discussion to abstract platitudes. Furthermore, the omniscience, omnipresence, and omnipotence of their preeminent supernatural being are fundamental properties of it.

Using big words, and acting serious, doesn’t hide the fact that the very topic is unserious. It’s like holding a conference on the economy of the United Federation of Planets. Sure, it may be a fun intellectual exercise, but no matter how much you dress it up, the core concept is fiction. And treating it as serious is not only unproductive, it’s profoundly insulting.

But sure. The Emperor’s new clothes sure are fantastic, and anyone saying they don’t exist are just haters.