No.
When people call All-on-4 “implant dentures”, they are incorrect.  Your dentist attaches the prosthesis to the implants with tiny screws that only the dentist can unscrew.  This makes it a “fixed” restoration, as opposed to a removable one.  Patients do not remove All-on-4 prosthetics.  The dentist removes it about once a year for maintenance, evaluation, and professional cleaning.
Because these are benefits that will last a lifetime, they far outweigh the monetary costs.