I’m not like most of you as I do not have any local files. Also I am new to roon (1 year). But for me went like this:
I reinstalled my old system 1 and 1/2 years ago and use YT from a laptop. Took me 3 months to buy a Yamaha with streamer and started Spotify, +1 month to get to tidal, +1 month to get my first dac and try roon, subscribed immediately but always had to go back to tidal app for mobile listening. If at that time ARC was available Roon would have had me for life. Now I see that happening but at a slow pace. It is not everybody but it is a story.