Change Find My Phone ringtone

Hello all,

I have a F7XPSS and would like to change out the sound of the ringtone for find my phone feature. I can't seem to find any native solutions and I had a less than helpful experience with support unfortunately. Does anyone on the forum's know how to plug my watch into the computer and change out the sound byte manually? It would be ideal to change the feature's alarm like on my smartphone, but even just changing it to literally anything else is preferrable as it's current state is stressful.