Thank you for contacting Samsung
first sorry for the inconvenience and the delay in delivering software updates due to improvements on the update to make your experience with Samsung devices more secure
kindly check the device settings for software updates and keep it automatic updates
or you can keep in touch in Samsung member app
also you use smart switch app : download it in your computer and connect your device and open smart switch and log in in your Samsung account any software available will appear to you
https://www.samsung.com/us/support/owners/app/smart-switch