I have a NUC that has an Intel i5 CPU, 16 GB of RAM, and 256 GB SSD that is running the latest version of Linux Mint.
Using the web browser on the NUC I can visit the "www.felenasoft.com/xeoma/en/download" website and click its <Download> button for Xeoma 23.8.10 for Linux 64-bit to download a file named "xeoma_linux64.tgz". After the download is complete, I can extract the "xeoma.app" file from this .tgz file. Afterwards, when I double-click on the "xeoma.app" file, its application launches successfully.
Using the same web browser on the same NUC I can visit the "www.felenasoft.com/xeoma/en/changes/" website and click its <Download> button for Xeoma 20.12.18 for Linux 64bit (because my Xeoma license is for V20) to download a file that is also named "xeoma_linux64.tgz". After the download is complete, I can extract the "xeoma.app" file from this .tgz file as well. However, whenever I double-click on the "xeoma.app" file that comes from this .tgz file, nothing happens! I have tried repeating this procedure for other Xeoma 20.x versions, but all of their "xeoma.app" files do the same thing (i.e. nothing).
I want to move my Xeoma v20.4.3 server from my PC (which runs the exact same version of Linux Mint and the exact same version of web browser) to this NUC, but this issue is preventing me from doing so. Oddly, I can perform the steps mentioned above on the PC, and the "xeoma.app" files for both versions run properly. Summarizing, it seems that the Linux Mint 21.2 recognizes the v23.8.10 "xeoma.app" file as an executable file but not the "v20.12.18" version. Because I don't understand how Linux is supposed to know how to launch the "xeoma.app" files, I have not found a way to generate any kind of error message or log to troubleshoot the problem.
FYI, I tried opening a Terminal window, navigating to the same directory that the v20.12.18 "xeoma.app" file was in, and then executing the command "./xeoma.app -install -coreauto". This created a "Xeoma" launcher on the Desktop, but double-clicking (or right-clicking it and then selecting "Open") doesn't do anything.