Ultrawide 16:9 and sep. tab

Is it possible to have overwatch at 16:9/ 1920x1080 borderless windowed on the right side then a tab such as chrome on the left on my 34" ultrawide?

You might hit some performance drops, but you should be able to do that. Chrome would just be much smaller than the game window obviously.

edit: then again, there seem to be issues with ultrawide monitors and OW currently, but I do not recall seeing these issues being stated with anything other than fullscreen Overwatch.

but isnt the problem with ow and ultrawide with the 21:9 ratio? Like i said i just want to have it at 16:9 and a tab on the side

It’s always possible, but I don’t know what program/app to enable that as Windows itself doesn’t have this feature.

The best thing you can do with Windows alone is do borderless windowed Overwatch and the other program to the side