Rooting the Honor 90 5G or any latest phone from Honor can be a complex process as it involves modifying the system files of the device. It's important to note that rooting your device may void your warranty and could potentially lead to security risks if not done correctly.
I recommend checking XDA Developers forums or other reputable Android development communities for tutorials and guides on how to root the Honor 90 5G. These forums often have detailed step-by-step instructions, custom ROMs, and tools that can help you with the rooting process.
Before proceeding with rooting your device, make sure to thoroughly research the process, understand the risks involved, and backup your data to prevent any data loss. It's also essential to follow the instructions carefully to avoid bricking your device.
Remember that rooting your device is a decision that should be made carefully, weighing the benefits of customization and control against the potential risks and consequences.