Is the processor
AMD Ryzen ™ 5 3500U / AMD Ryzen ™ 7 3700Ucan be unlocked to overclock?
You can't open two identical threads so I will delete my other answer to your other thread since now you are more specific about the APUs you want to know about:
The Ryzen 5 3500U APU according to AMD it is LOCKED from overclocking: https://www.amd.com/en/products/apu/amd-ryzen-5-3500u
The Ryzen 7 3700U APU Processor also is LOCKED from overclocking: https://www.amd.com/en/products/apu/amd-ryzen-7-3700u