I have most of my M12 kit in a systainer that I take into virtually every job with me.
This has a sawzal, impact driver, installation drill driver and Jigsaw.
The Jigsaw is a fab addition to this set for the odd notch in a kitchen cab, or cutting the odd batten or something.
I have used it to lay laminate flooring but it does need a blower for sure and also it would benefit from pendulum action to speed up the cutting.
It’s fab for the odd cut but not one to have on its own without the M18 for heavier duties or an electric one to step in where the M12 falls short.