Are you a stoner? That kills the recall of your dreams but not the actual dreaming. You just never remember

Start taking ssri and every night is an adventure

You might have sleep apnoea. If you also happen to not really feel rested in the morning. I know people that haven't had it diagnosed for decades and it turned their life around and they also finally dreamed again. As a "byproduct" of not bearly dying every night but resting.

IF there is a pathological reason. Can also just be you don't stand up shortly after your last REM-sleep and go into deep or light again. Might wanna just check with some smartwatch or just an alarm mid-sleep to check if you then remember stuff.

Hmm do you perhaps watch some streams or listen to podcast before sleep ( or even during sleep technicaly speaking ) ,beacuse i also dont dream when i do this.

But i on the other hand also dream vwry vividly and intensly when i think about stuff before sleep ( whatewer it is , book idea , aliens, power fantasy about conquest of russia, imagining the layout of pipes around my house ).

You probably have dreams but are not aware because you do not wake up during a dream anymore. Maybe your sleep habits changed. You can remember dreaming only if you wake up during REM sleep. I know it is not possible probably, but if you have someone watch you while you are sleeping and wake you up a few seconds after they see your eyes moving, you'd probably remember your dream.

Eat more bananas !

Idk, i remember reading that banana makes your dream more lucid.