
Google permits you to change in between numerous Google accounts easily. Among those accounts will be assigned as your default Google account, which is generally the account you signed into very first (according to Google).
How Your Default Account Works
Google uses your default Google account automatically when you utilize Google services like Google Search, Gmail, YouTube, Drive, Photos, and more. If your default Google account isn’t the one you desire it to be, you’ll have to switch to the suitable account every time you access among these services from a web browser.
You might wish to change your default Google account if:
You want to instantly sign in to your Google account on your desktop computer or devicesYou wish to instantly sign in to your work-related Google account on your job-related computer system or devicesYou’re currently investing more time and effort than typical using Google services for a different Google account

Resetting Your Default Google Account
The only method to change your default Google account is to sign out of all your Google accounts and then sign back into the main Google account you wish to set as your default one initially, before you sign into any additional Google accounts. Follow these actions to ensure your default Google account has actually been changed to the ideal one.
Navigate to myaccount.google.com in a web browser and select your profile image or icon.

Select Sign out of all accounts.

You might be shown a message about your syncing being paused. If you see this message, select Continue.
You’ll see a Choose Your Account screen with all your signed-out accounts listed.

Select the Google account you want to be your default, enter your password, and select Next. Since you signed back into this account first, it automatically becomes your default Google account.

To sign back in to another Google account, select your profile picture or icon, then select the account and sign in as usual. Repeat this process for any other Google accounts.

To verify that the first account is your default, select the profile icon of another signed-in account. You’ll see “default” next to the first account you signed back into.

When using your default Google account, you won’t see the “default” label after you click your profile. You’ll see the default label in the dropdown list only while you’re actively using another Google account.
An Important Note About Your Google Account Settings
According to Google, each Google account has its own separate settings, but when you’re signed into numerous Google accounts, often Google can’t inform exactly which one you’re utilizing. In this case, some settings might be used from the wrong Google account.
When you open up a brand-new web browser window while signed into 2 of your Google accounts, Google may not be able to tell which one you want to utilize in that new window. Settings for that new window will then generally be applied from your default Google account.
Change your default Google account whenever you desire. Default Google accounts are device-specific. If you use numerous computers or devices, you’ll need to reset the default Google represent each device.
What About Setting the Default Google Account on Google Mobile Apps?
If you utilize main Google apps like Gmail or YouTube, you can check in to multiple accounts and switch between them simply as you can with a web internet browser. Select your profile and then pick the Google account you want to utilize.
Unlike using Google services by means of the web, nevertheless, there does not appear to be a default label beside any particular Google account. The app simply remembers which Google account you used last and keeps you there till you manually switch to a different one.