Functionally, besides all the added content, is there any difference between 6.4.2 and 6.4.7 versions?

I just changed my storage default "save apps to" location from C: to D: for Microsoft Store in case I buy it from there. When I installed previous things it doesn't give you the choice of an install location. I have all my apps and data on my non-OS drive where I have more storage. I just hate logging onto Microsoft Store. The last time that kicked me off my local Windows account and it was a pain to reset that. I like automatically logging on my home PC using my local computer admin account. Maybe I'm a paranoid computer tech LOL. Are there other online stores for the PC version?