Sizing Site Manager Up Works, Down Doesn't

[JimmyKumbaya]

There appears to be a mandatory minimum size for Site Manager under Linux Mint (Cinnamon) 21.2/21.3. On a 1920x1080 display at 100% UI scale, I can size FileZilla itself down however small I want, but it's a comfortable 1009x812 right now. Site Manager, however, starts up at 1265x543, despite having lots of white space to the right of the "My Sites" list and long drop-down boxes under the General tab. I can size that window horizontally and vertically up to maximized, but there's a hard stop when I try to size the window down to accommodate the dozen sites I have.

I've tried wiping filezilla.xml completely and see the same behavior, a large Site Manager window larger even than the default (no filezilla.xml file in place) FileZilla client, at that same size of ~1267 x ~543.

Doesn't affect performance, just an eye-catching annoyance. Any suggestions appreciated.

FileZilla Client
----------------

Version: 3.66.5

Build information:
Compiled for: x86_64-pc-linux-gnu
Compiled on: x86_64-pc-linux-gnu
Build date: 2024-02-07
Compiled with: gcc (Debian 8.3.0-6) 8.3.0
Compiler flags: -O2 -g -Wall -Wextra -pedantic -Wno-cast-function-type -ffunction-sections -fdata-sections

Linked against:
wxWidgets: 3.2.4
SQLite: 3.39.4
GnuTLS: 3.8.3

Operating system:
Name: Linux 5.15.0-97-generic x86_64
Version: 5.15
CPU features: sse sse2 sse3 ssse3 sse4.1 sse4.2 avx avx2 aes pclmulqdq rdrnd bmi bmi2 adx lm
Settings dir: /home/jim/.config/filezilla/

--
Jim