However - it does work in ACR whether hosted by Photoshop or Bridge, no difference. I suspect you're confusing with the ACR filter in Photoshop, which isn't quite the same thing. The filter is used on RGB files already open in Photoshop.
Thank you for the info! I wanted that to be known so they can possibly be updated (unable to comment on archived posts) because I was searching and only found those answers. I contacted the users who answered and one got back with me and was able to change it, hopefully we can get them both updated.