The only 2 apps I have had good success with are the YTTV and DirecTV apps. The other apps have been a mixed bag. Roku Deeplinks are hard to figure out on many apps and keystroke tuning has many built in hurdles by the app developers.
In my experience, the Roku DirecTV app tunes faster than when I was using ADBTuner with my Walmart Onn 4k boxes. I dropped YTTV before you launched Roku Tuner Bridge. So, I haven't had an opportunity to test that service.
I did manage to get several Paramount Plus channels working fairly well. Though, I have recently let go of that service provider.
I have also gotten the Peacock app to open. But, I have not been able to get a channel tuned. I'll keep fiddlin' with that one a little longer.