Here is a list I have formed:
-Switch to Esim
-Build more apartments
-Use shampoo/conditioner bars
-Put carbon labels on products
-Buy stuff at the store
-Eat plant based
-Prioritize transit over cars
-Switch to Ecosia
-Recycle
-Give homemade gifts
-Compost
-Be organized
-Avoid synthetic cloths
-Switch to green burials
-Buy reputable carbon credits
-Mandate microfibre filters for washing machines
-Install Linux on old computers
-Switch to Electric car -Shut down all oil operations
-Pickup litter
-Ride your bicycle instead of the car
-Adopt kids and companions instead
-Build more green spaces
-Convert animal agriculture land to wild lands
-Support repairability
-Ban private jets
See, to me, those numbers just dont seem that bad in the scheme of things, annual medical waste in Victoria, Australia, is 3x that (Vic is a state of 7-8M people, we are pretty small). I bet the single use plastic shopping bags tossed annually dwarfs this by many orders of magnitude.
https://www.health.vic.gov.au/planning-infrastructure/waste
Many phones dont support eSIM yet, so an individual switching means throwing away an otherwise fine phone, and that doesnt seem worth it to save on 1 credit card sized peice of plastic.