In Kubuntu, when Renoise is maximized, the window does not seem to take the size of the task bar into account when calculating the height of the window. Instead, the bottom part of the Renoise window becomes hidden as it goes beyond the boundaries the window’s Y axis size if the taskbar is at the top, and if at the bottom, the bottom of the window becomes covered by the taskbar.
For example, this is how it looks when the task bar at the top is of a size of 32:
and noticed how the Renosie logo at the bottom right is not completely displayed.
Here is another screenshot when the task bar at the top is of a size of 36:
and notice that the logo is almost gone.
Renoise 3.4.3 (but also a few other version prior to that)
Operating System: Kubuntu 23.04
KDE Plasma Version: 5.27.8
KDE Frameworks Version: 5.110.0
Qt Version: 5.15.8
Kernel Version: 6.6.4-1-liquorix-amd64 (64-bit)
Graphics Platform: X11
Processors: 4 × Intel® Core™ i5-7300U CPU @ 2.60GHz
Memory: 15.4 GiB of RAM
Graphics Processor: Mesa Intel® HD Graphics 620