Texture and behavior packs aren't working on minecraft bedrock realms, what i mean by this is they will say initializing download/upload or applying packs, then they will show as if they were never applied, sometimes it will apply them and not show that they're applied, but most of the time it will just not work at all. i've submitted a bug report for 1.16.210 and now another report for the 1.16.220 update. I could only set this as 1.16.210 but it does effect 1.16.220.