Linux support is purely experimental. Please, report problems. However, we do not make any commitment about bug fixing and future support.
RAD Studio 10.2 Tokyo brings Linux support. However, this support is limited to a non-GUI application. For a GIS class application, a GUI is a must-have. Therefore our interest in supporting Linux is limited. Surprisingly, a third party company decided to provide FMX Linux support which makes it possible to port the Developer Kernel for Delphi to the Linux platform. Please visit FMXLinux.com to learn more about this project.
We did a small investigation, you can read about its results in our blog.
With the release of DK11.4.0 we decided to include GisBaseObject unit compiled for Linux in the installation package (but not in the trial edition).