Previously I completed my 50,000 word count on NaNoWriMo, was wondering do we submit our writings at the end of November to verify we wrote 50,000 words and if so where do we submit our word entries on this site. I am new today to this new version of November writing.

No, I haven't made any word verification feature. Partially, I did it because it's a self-challenge, and the only the person anyone would be decieving is themself. The other reason is that people might be concerned about submitting their works to an unknown site (as well they should, realistically) without knowing what it might be used for. Also, somepeople handwrite, so that would be annoying for them 😅 Would a word count tool be something that you'd find useful, aside from validation?

Yes, I would find that very helpful! Some of the programs I use include my "meta gaming" and world building because it's in the same project, and it's nice to be able to verify accuracy.