The privacy of current tracking methods (3rd party cookies) is bad, which is why a lot of browser vendors are starting to block 3rd party cookies by default. FL

The privacy of current tracking methods (3rd party cookies) is bad, which is why a lot of browser vendors are starting to block 3rd party cookies by default. FLoC may be marginally better than 3rd party cookies, but still browser vendors are mostly choosing to block it by default. There isn't a good reason to let either succeed.