Likely. As with dragonflies, there is a minimum speed below which flies don't perceive motion. In both cases, if you move very (
very) slowly, you can approach almost to physical contact without provoking any reaction.
Anecdotally from my experience as a macro photographer, the threshold for flies is lower than for dragonflies; flies often startle in response to movements almost too tiny to perceive having made, while dragonflies are relatively easy, usually requiring only a few minutes to approach from a distance of a meter or so to the ~12cm minimum focus distance of my best macro lens. (It's hard to know; the passage of time isn't of much interest in the focused flow state that's required for this sort of activity.) It helps that disturbed dragonflies tend much more often to return to the same perch, but with some practice it's possible to make the entire approach without disturbing them at all. The only really tricky part about it is that, when you're moving slowly enough, they also tend to land on you, which can be somewhat distracting if you're ticklish.
In any case, the existence of a minimum rate of change for perception of motion suggests that flickering light below a certain frequency might well be perceived as strongly discontinuous.
(It also merits mention that my macro rig includes three very powerful flash heads mounted around the lens front element. I've never observed dragonflies, wasps, bees, flies, or spiders to react to these in any way, even when firing from a distance of six inches; the only reaction I've seen has been from fall webworm caterpillars, which displayed a communal defensive response, and that may have been as much due to the shadow I cast, or to the polistid wasps hunting nearby, as to my flashes firing. The wasps notably did not care at all about me or my flashes, especially after they also found the nest and busied themselves with its rapid depopulation.)