This section can’t really be edited, removed, or deactivated. Your users will be able to access the site from WordPress.com as soon as they connect it to WordPress.com.
You don’t have to worry about automatic updates, though. Activating / Deactivating / Updating plugins will only be available to them if they have the permissions to manage these options on your Multisite network.
If you do allow them to manage plugins, you could still stop them from activating automatic updates thanks to the AUTOMATIC_UPDATER_DISABLED
constant, as explained here:
https://codex.www.ads-software.com/Configuring_Automatic_Background_Updates#Constant_to_Disable_All_Updates
Jetpack and WordPress.com will respect that constant, and won’t automatically update any of plugins when that constant is active.
If you’d like to remove that section from their dashboard, you could use CSS, like so:
function jeherve_custom_jp_admin_css() {
$css = '
.nux-intro .wpcom {
display: none;
}
@media (min-width: 782px) {
.nux-intro .j-lrg-4 {
width: 50%;
}
}
';
wp_add_inline_style( 'jetpack-admin', $css );
}
add_action( 'admin_print_styles', 'jeherve_custom_jp_admin_css' );
2 notes about this, though:
- This CSS resizes the 2 other columns, but only on large screens. You’d need to handle every breakpoint to make things look good on every device.
- The entire Jetpack admin screen will be completely redesigned in Jetpack 4.3, scheduled to be released in a few months. Once you’ll be running that version, this CSS won’t be very useful anymore.
I hope this helps.