Bug? Window won't stay put

I use three monitors. If I have Writer open on one, and Navigator open on another, if I activate any window other than the above – that is, if Writer is no longer active – when I come back to Writer, the Navigator window moves itself to the middle of the Writer screen, needing to be moved out of the way again. Not very standard and rather bothersome.

Version: 26.2.0.3 (X86_64)
Build ID: afbbd0df0edb6d40b450b0337ac646b0913a760c
CPU threads: 4; OS: Linux 6.1; UI render: default; VCL: gtk3
Locale: en-CA (en_CA.UTF-8); UI: en-US
Calc: threaded