Hi, I work for the Environment Agency, in flood risk management.
We recommended that you don't drive through flood water. You don't know what's beneath. Even on familiar roads, flood water can scour out potholes and lift grates and manhole covers to create unseen holes in the road.
If you must drive through, don't go deeper than axle deep( your can is unlikely to float at these depths. This is about 30 cm on most road cars, obviously less if yiu have smaller wheels.
Floor water also brings with it all sorts of other debris, and you don't know what you're driving over. Driving through flood water also creates a bow wave that can I push water forward at speed and cause damage "downstream".
Don't go deeper than exhaust pipe depth, this is a way for flood water to get into your engine. Check your own car if it is higher than your axles.
Seeing as how you have driven through a made it, then I think your car will be ok. Check your tyres for anything sharp that you may have driven through in the flood water.
Insurers differ as to whether they cover you for damage resulting from driving though flood water.
I'm glad you are home safer @Unddd