imagick is missing php-module

[pheiduck]

Describe the bug

imagick is missing

To Reproduce

Steps to reproduce the behavior:

1. Go to settings -> overview
2. see missing php-module

Expected behavior

Green checkmark System running fine.

Screenshots

OS/snapd/snap version

Arch Linux Kernel 5.9.6

$ snap list nextcloud

Name Version Rev Tracking Publisher Notes
nextcloud 20.0.1snap1 24051 latest/stable nextcloud✓ -
and:

$ snap version

snap 2.47.1-2
snapd 2.47.1-2
series 16
arch -
kernel 5.9.6-arch1-1

[kyrofa]

I'm afraid imagick is a security concern, and as such isn't enabled on purpose. You see this warning if you enable the theming app, because the theming app uses it to generate favicons. As a result, that particular feature (favicon generation) isn't possible while using the snap.

[XSpielinbox]

Is there any way a user nevertheless wanting to enable imagick can do so?

If not, how can one disable the theming entirely, that this warning does not show anymore?