I spent some time using the GoVCL bindings of Lazarus LCL, and made some small app with it: https://code.ivysaur.me/yvbolt
It does work, but I had hoped for more, it is simply too far behind in many ways and is stuck on GTK2 (so no high DPI support). The LCL itself does support GTK3 and Qt5 (and nothing newer), but recompiling GoVCL to use them broke quite badly.
