Please, people at GOG- do your homework and find out which Java package is best for the Linux version of B.T.M; then put it on the store page under "system requirements".

Well, may not be perfectly related - but I encountered under GNU/Linux (Kubuntu 20.10 STS) with AMD graphics an error:
 ./bin/java: symbol lookup error: /lib/i386-linux-gnu/libxcb-dri3.so.0: undefined symbol: xcb_send_request_with_fds
when invoking 'start.sh' ...
Found something similar when searching and editing 'game/BTM_launcher_linux.sh', i.e. adding two lines at the start of the end section:
~~
# 1st line added by JMB for testing!
LD_PRELOAD='/usr/$LIB/libstdc++.so.6' LIBGL_DRI3_DISABLE=1 \
./bin/java \
-Djava.library.path="." \
-Dorg.lwjgl.librarypath="${INSTDIR}" \
-jar BTM.jar -Xmx1024M -Xms512M >"${LOGFILE}"
~~
did the job for me.
Just in case this Java error occurs frequently.