This is How Fujifilm’s Electronic Images Stabilization Works on X-T100
Fujifilm X-T100 EIS
The Spanish site Fujistas (youtube video) published a video that shows how the electronic image stabilization (EIS) works on the Fujfilm X-T100. It works only in video mode so far.
Mechanical OIS and IBIS will always work better, but the EIS is also quite effective, and I think we Fuji Lovers would not hate it to get this feature on other X series cameras, too.