Is a 60Ah Varta battery the right choice for a small hatchback in Dubai heat?

Hi everyone, so I want to get some clarity on something that has been confusing me for the past couple of weeks because I feel like every time I ask someone at a workshop or auto shop here in Dubai I get a slightly different answer and I'm starting to wonder whether anyone actually knows what they're talking about or whether they're just telling me what sounds most confident in the moment. I drive a small hatchback, a Volkswagen Polo to be specific, and the battery that came with the car when I bought it secondhand has finally given up after what I'm told was already a fairly old age for a battery operating in this climate. The car started showing signs about three weeks ago with slow cranking in the mornings and then last week it just refused to start completely after sitting in an outdoor parking spot during the afternoon heat, which is honestly one of the most stressful things that can happen when you're already running late for something important. I had someone come and jump start it and then drove to the nearest workshop where they confirmed the battery was done and needed replacing immediately. The guy there recommended a particular replacement but when I asked why he'd chosen that specific capacity he gave me a vague answer about it being a common size, which didn't give me much confidence that he'd actually matched it to what my car specifically needs. I went home and started researching properly and came across information about Dubai 60Ah Varta Battery Replacement which seemed to address my exact situation in terms of matching the right battery specification to a smaller European vehicle operating in extreme heat conditions. What I found interesting during my research is that the amp hour rating isn't the only thing that matters when choosing a replacement battery for a car like mine because the cold cranking amps and the battery type, whether standard flooded, EFB or AGM, also affect how well the battery integrates with the car's charging system and start stop functionality if the car has it. My Polo does have a basic start stop system and I've heard that using the wrong battery type for a car with start stop can cause issues with how the system manages itself over time, but I'm genuinely not sure whether that applies to my specific model year or whether it's more of a concern for newer more complex vehicles. I'd love to hear from anyone who drives a similar small European car here in Dubai and has gone through a battery replacement recently, specifically whether you got the capacity and type properly matched to your car's requirements or whether you just went with whatever the workshop had available and whether that caused any problems afterwards. The technical side of this is genuinely more complicated than I expected for what seems like a straightforward replacement job and I want to get it right the first time rather than having to go through this whole process again in eighteen months because the wrong battery was fitted.