I have my fedx number , sys my employer has sent my H1B petition to USCIS

My question is how I will get to know with that tracking number, that they sent my documents only.
Because I am not seeing any details in that page.
And another question is what are all the details employer should share the details with me, if they filed h1b for me
Sorry If the question makes you feel silly, But I don’t have any idea on this

It is just the trust that your employer or attorney has given you the Fedex Number that they used to send your petition. You cannot identify that it is your petition anywhere on fedex site.
Read H1B 2020 Basics - It has your question addressed there