Which also makes me wonder how many of the shooting stars I've seen recently are just old starlinks burning up.
Probably close to none. The lifetime of the satellites is about 5 years give or take. According to this page [1], a total of 355 satellites have deorbited over the past roughly 5 years. That's an average of about 71 per year or about one every 5 days.
Since planned disposals are done over uninhabited areas (e.g. the pacific ocean), the likelihood of spotting one is very low.
Hope that helps answer your question, even it wasn't necessarily meant seriously :)
[1] https://starlinkinsider.com/starlink-launch-statistics/