[Immediate] Ability for Sign in to multiple accounts at once within same browser tab similar gmail and yandex

[Immediate] Ability for Sign in to multiple accounts at once within same browser tab similar gmail and yandex

Once login to account then gmail, yandex has option to add multiple accounts to use at same time
https://support.google.com/accounts/answer/1721977

Description

Add accounts

  1. On your computer, sign in to Google.
  2. On the top right, select your profile image or initial.
  3. On the menu, choose Add account.
  4. Follow the instructions to sign in to the account you want to use.
Computer AndroidiPhone & iPad

Switch between accounts

  1. On your computer, sign in to Google.
  2. On the top right, select your profile image or initial.
  3. On the menu, select the account you'd like to use.