Just installed a fresh linux distro (doesn’t really matter which as long as is a rolling distro) on a new laptop so I had to reinstall the entire toolchain.

I installed the Lazarus 2.0.10 and FreePascal 3.2 and then recompiled the project using the LLC based on Qt5 widgets. It works if you install Qt5pas package. This will be default, as gtk2 and it’s theming engine is hard to get these days.