On an ebike that distance is reasonable. On a regular bike it is possible, but not reasonable. I have a 7 mile trip to work, I have used a regular bike for it, but it takes too long and so I wouldn't do it often. On my ebike it is a reasonable trip to work, my truck isn't that much faster (and is much harder to drive)

From where I live to where I work is 8km. That takes somewhere between 19 and 23 minutes. 23 minutes on the days when there was more than 3-4cm how snow on the road. I occasionally take the scenic route to work. About 14km and a little more than half an hour.

I do this every day. Regardless of weather. It saves me a lot of time for the simple reason that this both represents a mild workout and getting myself to work.