Solution to Chromium based apps not working on Big Sur.

Manojlovic wrote:

To say that this is not Apple responsibility is simply not true. You can see from solution here.

Simply make another account under Settings/Users clicking on + Create New User button.

Login into new account and than open Chrome and run speed test.

When you go back to your main account than you can see that all your Chromium based apps works now.

And there are plenty of Chromium based apps like: Chrome, Figma, Adobe Creative Cloud, Slack and list is very long.

So Apple needs to solve this problem because we can see from solution that is not bug on Chrome side.

Creative Cloud apps are working just fine for me as well as Microsoft Edge browser which is Chromium based.

It is not Apple's problem, you have something corrupted in your main user. Some preference or settings have either been corrupted or not properly set or you have some startup app that is causing problems. The proof is that you created another account and things work.

Go to System Preferences->Users & Groups. Select your normal account and select login items. Delete all that are present, reboot and see if issues still exist. If they don't, start adding those old login items one at a time until the problems recur. Then contact the vendor of that app for a solution.

It is the vendors responsibility to insure that apps work on any platform and not the creator of the operating system be it Apple or Microsoft.

To really see what is going on with this computer - both Hardware and Software >>

Suggest downloading the Application  Etrecheck  https://etrecheck.com  directly from a well Respected ASC Contributor. 

The application is free or paid from added features. 

Run the application with Full Disc Access ( Security & Privacy - Full Disc Access ).

It will take a Snap Shot -  both the hardware and software.

The Report will Not Reveal Any Personal Information. 

Post back the Full Report - copy and paste - using the Additional Text Icon ( 3rd Icon to last )

We can have a look at the report for possible issues and may have possible suggestions to resolve the issues.

Any Third Party Applications that will interfere with the normal operation of the OS, alter, modify, remove or delete or attempt to do so is an invitation for disaster and may require a Reinstallation of the OS.

This includes AntiVirus, Cleaners, Optimizes, UnInstaller etc.

Apple is not here, just fellow users, so they will not see your Chrome comments.

Just to add, Adobe Creative Cloud works for me as does Brave. As noted, the problems you are seeing are local to your Mac.