OverWolf Is Same as "Xbox Game Bar" but it's WAYYYYYYY smoother! It's perfect for low-end-pc so "Xbox" works fine on high-end pcs and "OverWolf" works good on low-end pcs, don't ask me about mid-end pcs lol..
For hosting common files it's ok. Also it is on Android too do, great to transfer files between your Windows and your phone. But if you want better security you have to subscribe a monthly offer.
Xbox Game Bar - A customizable gaming overlay built into Windows 10 👾
Dropbox - Online Sync and File Sharing
OBS Studio - Free and open source software for video recording and live streaming for Mac, Windows and Linux.
Google Drive - Access and sync your files anywhere
Nvidia ShadowPlay - ShadowPlay
Mega - Secure File Storage and collaboration