I’d guess the former is due to the Xwayland clipboard not being shared with the wayland clipboard (so 1password as an electron browser can only ever copy to other Xwayland windows, which is probably few at this point).
The solutions to that problem are:
Get a clipboard manager that syncs the clipboards
That will also persist the clipboard entries from applications that closed
Use the CLI tool or an alternative GUI using it that does work on wayland
If I edit the item and copy it with ctrl-c, then go to my target and paste it with my middle mouse button, it works. But I HAVE to edit, and use ctrl-c.
I can use the browser extension for copying without issue.
I suppose I can see why they think lack of copy functionality is a reason to keep the app running in X11 mode. But it’s kinda inconvenient for me since I’m using a window manager that doesn’t implement XWayland."
Which in that commit had:
# Currently half broken on wayland (e.g. no copy functionality)
# See: https://github.com/NixOS/nixpkgs/pull/232718#issuecomment-1582123406
# Remove this comment when upstream fixes:
# https://1password.community/discussion/comment/624011/#Comment_624011
#--add-flags "\''${NIXOS_OZONE_WL:+\''${WAYLAND_DISPLAY:+--ozone-platform-hint=auto --enable-features=WaylandWindowDecorations}}"