A lot of times, matters such as these should be seen as more risk management/reduction than risk elimination. A plastic lid has much less contact area than a whole plastic bottle, and single use bottles tend to shed more microplastics than reusable ones.
Oh yeah, it’s pretty terrible. Sometimes you can order meat from a deli/butcher counter and get it wrapped in wax paper but there’s the extra time spent to order it that way, and there’s a possibility that the wax is actually just plastic lining anyways.
Regardless, if you can find an alternative that works for you, any reduction in plastic is a good thing. It all exists on a sliding scale.