the edge will be less supported on a hollow grind than a flat grind.
convexing the edge makes all sorts of sense. it's not necessary to do it with strops, but that may be easiest, I don't know the knife, your skill, or what sort of strop or stone you might consider.
there seems to be a contingent that believes stropping is 'best'. . and if you put 'safest' as part of the question, least likely to screw it up irreparably.. they're correct.
I don't LIKE stropping, i convex everything, i have 4 decades and counting of practice with GOOD stones.. and it works just fine and i do it sometimes anyway. my prejudice is trival habit, not supported by any foundation..
but it sure ain't the only answer. it might well be the cheapest safe answer..

but the skill to use good stones grows slowly and is worth nurturing.. if you can freehand sharpen at all, you can be good at it. . with practice. at which point stones do it all.. but then you get into WHICH stones..
just listen to them. if you do it my way you'll be an obsessive stone collector and the prices are too high now.