Surface Area Idk, Nothing team knows why they chose ufs 2.2 instead of ufs 3.1. MTek processor should support ufs 2.2, as the backward compatibility is always supported.
The only reason I refused to buy 2a is ufs 2.2. I bought Realme Narzo 70 Pro, 17k device, performs better than 2a in every aspect. Only con is bloatware, which I know how to deal with.