flatpak exec of Zoom fails @ "bwrap: Can't mkdir /tmp/.X11-unix: Permission denied"; rpm launch OK, other flatpaks OK

[pgnd]

on

lsb_release -rd
	Description:    Fedora release 38 (Thirty Eight)
	Release:        38

with

flatpak --version
	Flatpak 1.15.4

where

mount | grep /tmp
	tmpfs on /tmp type tmpfs (rw,nosuid,nodev,nr_inodes=1048576,inode64)
ls -ald /tmp
	drwxrwxrwt 22 root root 560 Jun  9 11:11 /tmp/

and, @ https://flathub.org/apps/us.zoom.Zoom

flatpak install flathub us.zoom.Zoom
flatpak list | grep zoom
	Zoom    us.zoom.Zoom    5.14.7.2928     stable  system

zoome exec fails

flatpak run -v us.zoom.Zoom
	F: No installations directory in /etc/flatpak/installations.d. Skipping
	F: Opening system flatpak installation at path /var/lib/flatpak
	F: Opening user flatpak installation at path /home/pgnd/.local/share/flatpak
	F: Opening user flatpak installation at path /home/pgnd/.local/share/flatpak
	F: Opening system flatpak installation at path /var/lib/flatpak
	F: Skipping parental controls check for app/us.zoom.Zoom/x86_64/stable since parental controls are disabled globally
	F: Opening user flatpak installation at path /home/pgnd/.local/share/flatpak
	F: Opening system flatpak installation at path /var/lib/flatpak
	F: /var/lib/flatpak/runtime/org.freedesktop.Platform/x86_64/22.08/74b5ae6a53e3f39258f90c664a63ef256097bd77c4229fc11e96bc2dbd2ce0cf/files/lib32 does not exist
	F: Cleaning up unused container id 896669810
	F: Cleaning up per-app-ID state for us.zoom.Zoom
	F: Unable to clean up /run/user/1000/.flatpak/us.zoom.Zoom/tmp: open(tmp): Permission denied
	F: Allocated instance id 3723525918
	F: Add defaults in dir /us/zoom/Zoom/
	F: Add locks in dir /us/zoom/Zoom/
	F: Allowing wayland access
	F: Allowing x11 access
	F: Allowing pulseaudio access
	F: Pulseaudio user configuration file '/home/pgnd/.config/pulse/client.conf': Error opening file /home/pgnd/.config/pulse/client.conf: No such file or directory
	F: Running '/usr/bin/bwrap --args 38 /usr/bin/xdg-dbus-proxy --args=43'
	F: Running '/usr/bin/bwrap --args 39 zoom'
	bwrap: Can't mkdir /tmp/.X11-unix: Permission denied

checking

rpm -qa | grep -Ei "bwrap|bubblewrap"
	bubblewrap-0.7.0-1.fc38.x86_64
	bwrap-oci-0.1.2-20.fc38.x86_64

ls -al `rpm -ql bwrap-oci bubblewrap | grep bin`
	-rwxr-xr-x 1 root root 82K Feb  6 19:00 /usr/bin/bwrap*
	-rwxr-xr-x 1 root root 29K Jan 17 19:00 /usr/bin/bwrap-oci*

this occurs ONLY for zoom flatpak.
no such issue with (my) other flatpaks.
no such issue with zoom rpms.

( not sure if the flathub is official -- fyi, cc: @tommygaessler )