I own xbox ultimate and game share with my dad, does this also work with using the game...

No as it's a console only feature

However you can download games but only the subscriber can use cloud play

You have to sign into the xbox store app with your profile and he can use his profile on the xbox app for game saves

Your profile.can only be signed into.one device at a time hence why cloud play is only available to.the subscriber

So I share my Game Pass for Xbox with my Dad and he got Ultimate and I would like to use it on PC also while still under my account. He has his own Profile as do I.

First of all, there is no "Game Sharing" feature on the Xbox. People just name it that way, as it somehow works similar to what they imagine "game sharing" would do.

Instead, the "Home Console" feature allows family members that play together on one console to play games from other family members and benefit from one family member's Gold membership.

In theory, if your dad sets your console as their account's "Home Console" you will be able to play all games your dad has on his account, and most add ons your dad owns. Also your dad's Gold membership will be shared to your console, and everyone playing
on your dad's "Home Console" will be able to play online multiplayer on that "Home Console".

As for subscriptions like EA Access, this should IN THEORY work as well, so you could be able to play Titanfall 2, and thanks to your dad's shared Gold membership, you should also be able to play the Multiplayer part of it.

However, as EA Access is a separate subscription, games from the vault may or may not work on your console. Games your dad bought or got via Xbox Game Pass should however work.

Yeah the current solution doesnt work for all families - for us we have two xboxes in our house, but my step-son also spends 8 weeks each year with his dad. When he does he loses access to all our shared games - as we cannot include that third console
in the "family" for sharing

Hi there,

as far as I know you can't use the same account at the same time on PC and console and play a game.

What could work is if the account that bought the game played on the PC and you use your own account on your Dad's console (when your Dad has set his console as Home console)

See this link for some more information about the Home console setting:
https://support.xbox.com/en-us/games/game-setup/my-home-xbox

and also check, what is Not allowed to do when sharing games:
https://enforcement.xbox.com/en-us/home/staysafe#topic4