Which option should I move forward with?

Recently left my old job / company (Job A) for a new job with a new company (Job B) and wondering if it would be a smart decision to approach my prior employer and see if I may return back to my previous company. Listed some of the pros /cons below for each job.

Job A (Old Company): - Pros: Extremely prestigious and reputable company (great brand on resume) - Pros: Extremely focused on training junior talent well and structured learning experience - Pros: Very good culture overall. Felt more happy / motivated at work - Pros: Strong internal mobility and career development opportunities - Cons: salary was approx 40% lower than my new job at Company B. - Cons: Location was not ideal (in a very HCOL tier 3/4 city that was very far from home). The rent here basically ate up more than half my after tax income and I can’t see myself being in this location / city for an extended period of time - Cons: I don’t feel like there was a lot of valuable / transferable skill sets to be gained in my old job

Job B (New Company): - Pros: Salary is approx 40% higher than my old job - Pros: Location is better (located in a tier 2 city a lot closer to home). Rent significantly cheaper so save a significant amount of my income compared to my previous job - Pros: The job is more technical / analytical than my prior job so I might POSSIBLY learn some more useful skill sets (unsure about this at the moment tho) - Cons: basically no training provided; have to learn a lot on my own with very little to no guidance / support - Cons: While the people I work with are okay, the overall culture is not good. I don’t feel as motivated / interested at work as a result. - Cons: Significantly worse internal mobility and career development opportunities at new company - Cons: New company is known within the industry but nowhere near as prestigious / respected as my old firm (significantly weaker brand on resume)