I wonder if floppy disk drives nowadays can just read once at insertion and cache the puny 1.38MB in memory. And have some battery backup to write if the power

I wonder if floppy disk drives nowadays can just read once at insertion and cache the puny 1.38MB in memory. And have some battery backup to write if the power goes out during unmount procedure (The floppy drives on Macintosh didn't have the eject button and you had to drag the diskette to the trash to unmount it).