Launch flatpak version of OpenCPN

OK, i did the command you asked and got:

╭─kenb@ken in ~  
╰─λ  

sudo pacman -Syu
[sudo] password for kenb:
:: Synchronizing package databases...
core is up to date
extra is up to date
community is up to date
multilib is up to date
chaotic-aur                          1779.0 KiB  1840 KiB/s 00:01 [------------------------------------] 100%
:: Starting full system upgrade...
:: Replace garuda-settings-manager-knotifier-git with chaotic-aur/garuda-system-maintenance? [Y/n]  
:: Replace hwids with core/hwdata? [Y/n]  
:: Replace kvantum-qt5 with community/kvantum? [Y/n]  
:: Replace libappletdecoration with community/plasma5-applets-window-buttons? [Y/n]  
:: Replace libcanberra-pulse with extra/libcanberra? [Y/n]  
:: Replace os-prober-garuda with chaotic-aur/os-prober-btrfs? [Y/n]  
:: Replace qca with extra/qca-qt5? [Y/n]  
:: Replace sweet-theme-dark with chaotic-aur/sweet-gtk-theme-dark? [Y/n]  
resolving dependencies...
:: There are 3 providers available for pipewire-session-manager:
:: Repository extra
1) pipewire-media-session  2) wireplumber                                                                   
:: Repository chaotic-aur
3) wireplumber-git                                                                                          

Enter a number (default=1):
looking for conflicting packages...
warning: removing 'archlinux-appstream-data' from target list because it conflicts with 'archlinux-appstream-d
ata-pamac'
:: archlinux-appstream-data-pamac and archlinux-appstream-data are in conflict. Remove archlinux-appstream-dat
a? [y/N]  
error: unresolvable package conflicts detected
error: failed to prepare transaction (conflicting dependencies)
:: archlinux-appstream-data-pamac and archlinux-appstream-data are in conflict

╭─kenb@ken in ~  
[] ×  

sudo pacman -Syu
:: Synchronizing package databases...
core is up to date
extra is up to date
community is up to date
multilib is up to date
chaotic-aur is up to date
:: Starting full system upgrade...
:: Replace garuda-settings-manager-knotifier-git with chaotic-aur/garuda-system-maintenance? [Y/n] y
:: Replace hwids with core/hwdata? [Y/n]
:: Replace kvantum-qt5 with community/kvantum? [Y/n]
:: Replace libappletdecoration with community/plasma5-applets-window-buttons? [Y/n]
:: Replace libcanberra-pulse with extra/libcanberra? [Y/n]
:: Replace os-prober-garuda with chaotic-aur/os-prober-btrfs? [Y/n]
:: Replace qca with extra/qca-qt5? [Y/n]
:: Replace sweet-theme-dark with chaotic-aur/sweet-gtk-theme-dark? [Y/n]
resolving dependencies...
:: There are 3 providers available for pipewire-session-manager:
:: Repository extra
1) pipewire-media-session  2) wireplumber
:: Repository chaotic-aur
3) wireplumber-git

Enter a number (default=1):
looking for conflicting packages...
warning: removing 'archlinux-appstream-data' from target list because it conflicts with 'archlinux-appstream-d
ata-pamac'
:: archlinux-appstream-data-pamac and archlinux-appstream-data are in conflict. Remove archlinux-appstream-dat
a? [y/N]
error: unresolvable package conflicts detected
error: failed to prepare transaction (conflicting dependencies)
:: archlinux-appstream-data-pamac and archlinux-appstream-data are in conflict