It is normal for the GPU to show 0% utilization when not performing any demanding graphics tasks. Open Youtube or other streaming site and see if the utilization increases.
Your laptop processor i5-3337U also has an IGP, so your system may be using a type of switchable graphics, where the Intel processor performs basic graphics tasks and the HD 8730M is only used in games or benchmarks. In such cases Task Manager will typically show a GPU 0 and a GPU 1.
Ryzen R7 5700X | B550 Gaming X | 2x16GB G.Skill 3600 | Radeon RX 7900XT
Ryzen R7 5700G | B550 Gaming X | 2x8GB G.Skill 4000 | Radeon Vega 8 IGP
Ryzen R5 5600 | B550 Gaming Edge | 4x8GB G.Skill 3600 | Radeon RX 6800XT