Thank you for your patience all this while.
This issue is now fixed in the latest update (Id 14.0.1) of InDesign CC.
If you are unable to see the update notification yet, open the menu (three dots) from the top-right of Creative Cloud desktop application and click on ‘Check For App Updates’.
Once the update button is shown against InDesign CC, click on the button to update your InDesign to Id 14.0.1 for the fix of the issue.
Do let us know in the comments, if you face any problem with the new update.
List of fixed issues can be found at: helpx.adobe.com/indesign/kb/fixed-issues.html
An error occurred while saving the commentAnonymous commented
I am currently having this issue in InDesign v 15.0.2 (the latest update). It takes about 10-15 seconds to switch to type tool and lags when typing. I cant switch to the type tool using the shortcut either as it keeps reverting back to the selection tool. This problem persists even after using the software for a long period of time. Help please!