I can only answer the first question.
Note: A forum allows everyone to read the questions but also the answers, it is completely inappropriate to ask for answers by email, it removes all the usefulness of the forums. The email address is therefore not necessary
USB C to USB 3.0 5Gbps OTG Adapter Male Type C Cable to USB A Where 90 ° angled USB Type C OTG and Data cable to USB 3.0 Female
Atolla Powered USB 3.0 Hub, 4 Port USB Hub Power Strip with Individual On / Off Switches - Power Adapter Included
- Enabled developers option for enabled USB debugging
- connection of the Otg cable to the rog 5 and to the hub, then keyboard mouse to the hub