Glass bottles are not always single use. Countries have systems to recollect them (empty bottles hold a face value), they get factory-cleaned and quality tested and each bottle can run for 20 or more cycles. The issue is more that it increases the transportation and handling costs and emissions because of weight. Bottles that don’t pass the test anymore but did stay in the system can get near 100% recycled, tho the issues there are that it’s usually downgrade (make dark bright again = hard) and very energy intensive (costs more energy to recycle than to make glass from scratch). Anyhow: not single use.