Electron app run with --no-sandbox generates warnings and errors

I am trying to write my first electron app and deploy it to a system that requires me to run with the --no-sandbox option (I don't have root/sudo permissions on the system). While I am able to run with the --no-sandbox option, I see the following messages when I try to open a dialog to pick a file.

I can run vscode on the same system, and it also needs the --no-sandbox option, but I have not seen any of these messages while using vscode, so I assume it has something to do with the way may app is setup, or they way I am opening the dialog.

Error creating proxy: Unknown or unsupported transport “disabled” for address “disabled:” (g-io-error-quark, 13)
Error creating proxy: Unknown or unsupported transport “disabled” for address “disabled:” (g-io-error-quark, 13)
Error creating proxy: Unknown or unsupported transport “disabled” for address “disabled:” (g-io-error-quark, 13)
Error creating proxy: Unknown or unsupported transport “disabled” for address “disabled:” (g-io-error-quark, 13)
Error creating proxy: Unknown or unsupported transport “disabled” for address “disabled:” (g-io-error-quark, 13)
Gtk-Message: 11:03:02.463: GtkDialog mapped without a transient parent. This is discouraged.

(my-first-electron:158778): dconf-WARNING **: 11:03:02.658: failed to commit changes to dconf: Unknown or unsupported transport “disabled” for address “disabled:”

(my-first-electron:158778): dconf-WARNING **: 11:03:02.705: failed to commit changes to dconf: Unknown or unsupported transport “disabled” for address “disabled:”

(my-first-electron:158778): dconf-WARNING **: 11:03:02.714: failed to commit changes to dconf: Unknown or unsupported transport “disabled” for address “disabled:”

Here is an example of how I am opening the dialog.

import { remote } from 'electron'

then later

buttonClicked = () => {
    console.log(this)
    ipcRenderer.send('do-something')
    const dialog = remote.dialog
    console.log(dialog.showOpenDialogSync(remote.getCurrentWindow(), {
        properties: ['openFile']
    }))

}