[daviddever23box]

The biggest use case is the amazing battery life; this gives you, as a writer, the ability to work within your stream, then set the device down later in the day when you're ready to take a break.

Come back in an hour or so, and you're nearly fully juiced up.

Performance-wise, with appropriate software (i.e., M1-compatible, and none of this Rosetta stuff), it'll be faster than your 2015 MBP, even with half the RAM.

I recommend the MBA-M1 with 512 GB storage; the 8 GB RAM is plenty, and still has better effective memory bandwidth than my Core i9-9980HK MBP 15 (with twice that). Really.

Also - latest FFmpeg is compatible: https://isapplesiliconready.com/app/FFmpeg