How to remove weird desktop/homescreen icons?

[jojuma]

Hello,

it becomes annoying. Every update repairs things but seems to brake others. Overall I'm happy with it, but I'd like to be able to fix such things. Since I'm not that advanced, I hope you will help me. I took some screenshots, but when triggered, the slide down menu hadn't faded out completely, yet. Hopefully you recognize everything.

Currently I'm on Pinephone KDE (Manjaro/Plasma Mobile):
KDE Plasma Version: 5.22.5
KDE Frameworks Version: 5.86.0
Qt Version: 5.15.2
Kernel Version: 5.14.10-1-MANJARO-ARM

Problem 1:
When you look at the first screenshot, there appeared an icon "pinephone-speaker", or better no icon. If I tap it, nothing happens. What is that? How can I remove that 'icon' from the desktop view? Or better, how could I remove icons generally from here?

   


Problem 2:
Although I delete them every time, on my homescreen icons keep appearing after every boot. That happens even on a second homescreen, which is created for no purpose (see second screenshot). How can I remove them permanently?

   

Thank you for your help!

[acrux]

Problem 1 - I do not have that icon (pinephone speaker). In general - application launchers are taken from /usr/share/applications (system ones) and from /home/"yourusername"/.local/share/applications (user ones). Removing corresponding .desktop file removes also the entry at desktop. The most correct way of removing them is to uninstall the application...
Problem 2 - I have learned that it is better not to mess with desktop widgets icons etc. So I have just that Phone and Phonebook icons and that's all. From time to time all the desktop reverts anyway to the default look Widgets etc configuration is in the file: /home/"yourusername"/.config/*appletsrc file and user icons probably as /home/"yourusername"/.local/share/applications/*.desktop files.

[jojuma]

Thank you for your reply, that helped me a lot!