so assumeing a none murder world nor magic industrial revolution what do we get exactly?
A lot really depends on assumption. If magic is rare then magic items are rare and the PC's are rare and power beings.
Magic may require a lot of maths, memorisation of arcane rituals, esoteric words of power and the lore concerning their use. There may an organised scholarship magic users but given the time and learning to become a magic user the most of them come from the upper classes and given a social taboo on gentlemen working with their hands there may be very few magic items but quite a lot of magic spells and arcane rituals lying about in old libraries and scriptoria.
On a different set of assumptions, Magic may require a strong grounding in blacksmithing and alchemy before you get to the fun stuff so you end up with Eberron. Lots of magical knickknacks lying about for a relative scarcity of spells and spell casters.
Just because the books have about a third of the page count in spell descriptions, the world need to be dominated by spells or spell casters.
I don't think that it is useful to try and extrapolate from a set of assumptions to a final world state. First off, that is pretty much beyond anybody. Which is why people are so crap at working out the full implications of innovate and society changing tech. I am pretty sure that the inventors of the TCP/IP protocol envisioned cat memes and Tiktok videos.
You are better off deciding where your end point is; and working backwards from there.
Supposing you want some kind of Modern Arcana setting. Like the Dresden Files, so magic works but it screws up modern technology. The more modern and electronic the more it screws it up.
Now, is this because the magic users are actually innately inefficient in their spell work and generate a lot of EMP noise. So can you track active casting by monitoring for EM pulses? Does it have unique characteristics?
May be gnome casters are more efficient and less noisy and their casting works fine with modern tech.
