All the questions you asked are actually on a number of key issues. Trust wallet or any other wallet deposit and withdraw options are generally the same. Again, wallets usually do not charge any fees for entities entering. (In some coins such as XRP, XLM, small amounts can be taken for activation for the first time.)
I do not think there is a need for any video guide as the wallet uses are similar and generally simple.

There are a lot of review about Trust wallet both in this forum and the internet. You can find a lot of details with a basic search. And you can always ask here or Trust Wallet's twitter page.