Hi, Arafat Fahad
Welcome to Microsoft Community.
We understand that you are using Chrome, press alt+tab will appear multiple tab window problem, through the feedback of other users, this may be Chrome and Windows 11 system compatibility pairing conflict caused by the current has not yet received Chrome official and Windows fix instructions, for the time being, you can try the following options to see if you can mitigate the problem: I.Restart Windows Explorer (You will need to implement the program whenever a problem arises.)1.Press Ctrl + Shift + Esc to open Task Manager. Click "More details"2.In the "Processes" tab, scroll down to find "Windows Explorer." It might be listed under "Windows processes."3,Right-click on "Windows Explorer" and select "Restart" from the menu.II. Checking the settings1. Press Windows+i to open the settings2. Go to System-->Multitasking 3. Modify the settings as shown below:
As we are only support staff and not Microsoft engineers as well as Microsoft employees, so regarding the issue that appears in newer versions of Windows, we suggest that you can press Windows+F to give official feedback to Microsoft on this issue, only if you give your feedback, the development team will be aware of the issue.After submitting, please share the feedback link here as this will allow others on the forum (including me) to vote for your submission. More votes will increase the attention and priority of the development team. Thank you for your understanding!If you need more help, feel free to reach out.
Best Regards
Nicholas.Z - MSFT | Microsoft Community Support Specialist