Linux, system wide installation isn't done correctly
When running the install script as root, the *.desktop file is placed in /usr/share/applications. I think that should be /usr/local/share/applications or /opt/.....
It seems to be fixed in the new IDE install: https://github.com/arduino/arduino-ide/issues/641 https://github.com/arduino/arduino-ide/pull/356/commits/b4db350ffbc80bf42a177a959f120e73c959a2f2
Processing seems to have this issue as well. Both install scripts are very similar. https://github.com/processing/processing4/issues/308#issuecomment-983098130
So is this resolved?
When I install both Arduino and Processing in /opt using the default install scripts, when Arduino launches, it displays the Processing icon in the taskbar. Odd.
Interesting, could you provide the screenshots and the installers you used. I think I can help since I have had a similar issue before.
it displays the Processing icon in the taskbar
This issue is tracked at https://github.com/arduino/Arduino/issues/11744
Thanks for your report @avlapp
It seems to be fixed in the new IDE install
That is great news. This means we can consider this resolved by the Arduino IDE 2.0.0 stable release.