LSP works fine now. The others also work if you resize them from the corners.
If you use the maximize/minimize button in the window (xfce), the brummer10 plugins (gx-guitarrix...) might glitch, but they recover when you resize from the corners.
I find that resizing from the corners if something looks wrong is an intuitive and natural action, at least for me.
On the other hand, the brummer10 UI, although it can be enlarged, generally doesn't need to be. I don't think anyone would enlarge it since it already has large controls.
So, as far as I'm concerned, it works as expected.
I've given it a quick test.
LSP works fine now. The others also work if you resize them from the corners.
If you use the maximize/minimize button in the window (xfce), the brummer10 plugins (gx-guitarrix...) might glitch, but they recover when you resize from the corners.
I find that resizing from the corners if something looks wrong is an intuitive and natural action, at least for me.
On the other hand, the brummer10 UI, although it can be enlarged, generally doesn't need to be. I don't think anyone would enlarge it since it already has large controls.
So, as far as I'm concerned, it works as expected.