It very much depends on your usage of Roon I think, many don’t do very much other than add and play. For me I have had the odd random freeze of remotes but It mainly happens to me when editing my library or if you go back and forth between views a number of time. it just consumes all memory in next to no time doing this on remotes. I can achieve this again and again this is on windows 11 surface laptop and Andorid remote. Core hasn’t froze which is rock nor needed rebooting. I have had some playback just stop a number of times which is something it’s never done before.
I reported the Android behaviour a while ago and had no answer to that support request at all.