As the error message says, there is no way to transfer files between accounts from different domains but you could make copies using your G Suite account.
The basic steps are:
Using the personal account, share the files from the personal account to the G Suite Account
Using the G Suite account, copy the files
Transferring files across from ...
Use folders. As occurs with Gmail tags, a file in Google Drive could "have" several folders (to save a file to multiple folders use Shift + z).
Folders could be renamed
It's possible to search for files in a folder.
By the way, if you are using a G Suite account, another alternative is to use Workspaces.
For further details please read Organize your files ...
...in Firefox it opens in a new window whereas in Chrome it opens in a
...a browser-specific quirk.
Firefox: how to open drive.google.com files in a new tab.
Go to Options-> General
Check the: Open links in tabs instead of new windows option
In Google sheets, I found it effective to protect the sheet.
Right click the sheet tab at the bottom of the screen. Click Protect Sheet. Click the Set permissions button.
Choose Show a warning when editing this range.
My users have a sheet they mostly use for reference to lookup student information. On the rare occasion they need to make a change, or ...