Services like GeForce NOW and Xbox Cloud Gaming render games on server GPUs (RTX 4090s) and stream the video. Here, your phone's OpenGL version is irrelevant because the heavy lifting happens in the cloud.
Remember: In the world of mobile graphics, Vulkan is the present, and open-source drivers are the future. OpenGL ES 3.2 is the legacy standard. There is no 5.0. But with Magisk, you can still hack your way to glory. opengl 5.0 magisk