Without any manual connections
Apr 16 20:37:23 adam-thinkpad-t430 audit[30224]: AVC apparmor="DENIED" operation="ptrace" profile="snap.discord.discord" pid=30224 comm="Discord" requested_mask="read" denied_mask="read" peer="unconfined"
Apr 16 20:37:23 adam-thinkpad-t430 audit[30224]: AVC apparmor="DENIED" operation="open" profile="snap.discord.discord" name="/proc/29618/cmdline" pid=30224 comm="Discord" requested_mask="r" denied_mask="r" fsuid=1000 ouid=0
Running snap connect discord:system-observe gets rid of the denials (I’m aware there’s security issues with this but currently the denials are not silenced out-of-the-box)
( I would use nice dropdown things instead of Ubuntu Pastebin (which may expire eventually) but I actually can’t remember now how I did those 
)