Please help - 2 Brand New SSDs - Different USED space

Got these 2 today.
Both just have exactly the same setup files for Mac and Windows adding up to the same size (~15MB).
I haven’t added files to either one of them.

Why is it that one has 109MB used and the other nearly 200MB?

What accounts for the 100MB discrepancy? Is this expected? Why/Whynot?

Should I return the one with 200MB used and get a new one?

Thanks

Try examining the drive unhiding hidden and system files, also empty the recycle bin.