***with that comment it’s hard to take anything else you say seriously***I realize that you probably don't have any desire to move from Logic Pro, but I would strongly encourage you to explore PC-compatible DAWs and see if there's anything you'd be comfortable with.
Apple would've been by recommendation 10 years ago, but nowadays, I don't think there's anything but downsides for someone who isn't already locked into the ecosystem. Things seem to be getting worse over time.
- PCs are significantly cheaper and have far more customizability, repairability.
- Intel CPUs are being rapidly overtaken in both performance and price by AMD CPUs, which you're missing out on by sticking to Apple
- Windows 10 is FAR more stable and performant than macOS these days. I don't personally find Windows 10's ease-of-use any different to macOS's.
- Apple has shown a consistent disregard for its professional customer-base over the past few years and seems mainly interested in squeezing as much money out of the people who are locked into the ecosystem. They are not the same company that they were 10 years ago.
***That's probably not going to happen. The thing is really not meant to be user-upgradable.***
Just going by what I see here: https://www.scan.co.uk/3xs/custom/daw-digital-audio-workstation-pcs/form-factors#anc
You can get a 12 core AMD processor that has higher single-thread performance than an i9, along with 16GB of RAM for the same price as the i7, 8GB Mac Mini.
You can even customize these to not include any RAM or storage that you already have, and to specifically use a motherboard that would support the type of RAM you already have purchased.
Sorry, but the thing is, you need to be told