Well I can record directly the screen and save the recording as gif, but because I use a 2K monitor the GIFs are huge, 10s GIF can exceed easily 200MB, I can either upload them to GIPHY and that reduces the size a lot but also the resolution gets smaller and you lose the details in it, or I can record my gameplay, replay the video in VLC or KMPlayer and resize that window to be closer to 1920x1080 or 1280x720 and while recording a new gif in that window you get a much smaller GIF in size. 10s can be 50MB.

I will probably continue with the record thing, I also want to create a YT channel and put the whole gameplay there.