it’s getting them back on that is easier.
This guy, he knows. Also restarting after a dismount/stop.
The only real advice, imo, is give both a proper try- they both have genuine advantages and disadvantages but for most folks, neither are big enough to outweigh simple personal preference and that you can’t judge til you’ve got the skill and experience to ride both well. I reckon most riders will benefit skillswise from this too (but especially clippists, as clips can cover up a lot of issues, whereas flats are not shy about ****ing you up if you do it wrong)
Basically the skills that keep your feet on flats are also useful on SPDs. And the pedalling smoothness that SPDs make easy can be transferred back to flats.