Can you play 2+ different builds at a time in Standard

I'm new to POE and still trying to figure some things out. Currently I have 2 different character builds going at the same time, on the same account in Standard. It's great that they can share the same stash, and everything else seems to be working OK

BUT, the POE engine seems to get confused about the Labyrinth trials. Once 1 of the builds has completed the initial 6 tests, it opens up the Labyrinth for all the characters on the same account?

My first question is: If any one unique build completes the entire Ascendancy trials, does that eliminate the possibility for the other builds on the same account to also do unique lab/ascendancy runs?

My second question is: Can your stash only be shared with new builds on the same account?

Thanks in advance for your help

There are no restrictions on which classes you can take after you complete the game's story once to unlock the scion. For your second question, the stash is shared for all characters in that league.

Lab trials are shared between all chars on the account, because people had been complaining that they had to do it multiple times for multiple chars.

You still can run as many trials / labs as you want on all your chars, but you don't have to.

Yes, your stash is shared between all characters on your account, but not with other accounts, and not between different leagues (e.g. permanent Standard league, permanent Hardcore league and the temporary leagues that run for a few months each).

Btw. welcome Exile to your journey in Wraeclast!

Thanks so much (to both of you) for the help. It's greatly appreciated and the path forward seems much more clear now.

You guys said that Lab trials is for account, right?

But it works between leagues on same account? Asking that cuz i used to play Essence League then i quit for a while and my char got moved to Standard. At that char i have defaut labs + uber.

Last week just created a new char at Legacy League (always same account), and when i tried to do Normal/Cruel Lab it told that i need the trials again.

Then i stopped to play the league cuz i dont want to run another 600+ maps to find that fu***ing uber lab trials.

I just started in December. Played Standard league. When Legacy league started, I created a new character in Legacy SSF. And I did have to do the lab trials for Normal diff even though I had done them in Standard. So apparently that feature is not shared.

Trials are shared between characters of the same league.