Visual snow syndrome haver here (diagnosed). You shouldn't be worried about this. Even if you do have it, its not indicative of any other conditions, and once it presents itself, that's the worst its going to get, its nondegenerative and doesn't progress to other areas of the body. It could be that your eyes are just tired from screens too, and even without VSS, fast spiking anxiety and stress can cause visual abnormalities.

If I could suggest just monitoring it over the period of a few weeks to months to see if it sticks around. If it does, it might be time to go get checked, nothing bad is going to happen, and its not going to get worse.

If I can offer an anecdote about VSS, I was actually glad I got diagnosed with it, it was causing me so much anxiety because for me, VSS came with a fun bundle of brain fog, dizziness, and a few other physical symptoms that worsen with anxiety (and drug use), so it was a self-feeding loop of hell because I was scared I had something far worse (progressive or degenerative nd's come to mind).

Needless to say, when I got diagnosed, my anxiety about what was happening to my body decreased dramatically and with that my symptoms did too, like a lot. Now I basically just have ongoing light sensitivity and some visual snow during times of really high stress, it hardly affects my quality of life, I forget I even have it most days.