Google analytics vs. Google tag |Difference between Google Tag Manager and Google Analytics

you can use Google tag manager to connect your Google tag management and Google analytics accounts.

The setup is time-consuming,
 but it gives you more advanced tracking choices and allows you to use several tools.
So you can have both of them installed,
 but the implementation will be bad and the data will be incorrect.
If you want to utilise additional tool tags in the future, such as Facebook Pixel or Google Ads

Difference Between Google Tag Manager And Google Analytics - English

Mansoor Suhail