Many people have that set up. It’s just a question of how you want to use it.
Ina safer neighborhood, it’s quite common for people to leave the door handle unlocked during the day and just rely on the deadbolt. The smart lock then operates the deadbolt And the door can be opened. At night when the people go to sleep, they also lock the door handle. Or if they are going to be away on vacation. That does mean that the doorhandle has to be manually unlocked with the key if someone wants to get in during those times.
It is possible to also add a smart actuator device for the door handle, but to be honest, these are really ugly. They are more intended for sheds and garage doors.
The other alternative is to replace the door handle with an electric strike. This does give you a smart device that can be synchronized with the smart deadbolt and the bulky equipment is all inside the wall or on the interior wall so it looks fine. But it won’t work with your existing handle, you have to replace it.
Here are some threads where the issue was previously discussed with pictures of various options: