Icon illustration not correctly

Nextcloud version : 23.0.3
Operating system and version : debian bullseye container on Linux 5.13.19-6-pve
Apache or nginx version : nginx/1.18.0 (fpm-fcgi)
PHP version: 8.0.17

Can anyone help? Since a few weeks I severe strang illustration on icons in Nextcloud. I recognized this on my recently set up Intel NUC8 on Chrome browser.

Two examples
Menu bar:


I recognized this issue on my NUC only. And it appears in Chrome and Edge. I only recognized this within my Nextcloud. Other websites are working as usual.
As it is working as usual with another PC and my Tablet I am quite confused whether it is really an issue with Nextcloud.
Is anybody aware of this issue and can help?

Thanks in advance … Max

I found that when hardware acceleration for the browser is deactivated it works like usual. I just do not want to deactivate it for Chrome. Any idea?

Can you reproduce this bug with the test instance: https://try.nextcloud.com/

Then please create a bug report on Issues · nextcloud/server · GitHub