I am facing difficulties in buying Windows only traffic for my Google display campaigns. I understand that Google ads network does not provide the option to target OS for desktop traffic, so I have tried to gather the non-windows users on GA and exclude this audience list on my campaign.
However, it is not helping in simulating the campaign to buy more desktop windows users.
I am running on eCPC and Manual CPC bidding strategies for my display campaigns.
Does anyone has any other suggestion that I can try?