Oh it really depends on your use case and the hardware you use for embedded devices. If all you need are some buttons and some kind of static lists, lvgl should

Oh it really depends on your use case and the hardware you use for embedded devices. If all you need are some buttons and some kind of static lists, lvgl should be fine too. But for anything where you want things like smooth scrolling/higher resolutions you probably want to use the GPU. For eg. A badly implemented "speedometer widget" was making our whole embedded GUI stutter at 15-20 fps and 100% cpu usage (which caused other problems like overheating, timing problems etc...). 5 lines of change to make the GPU do most of the work and we were back to smooth 60fps and low cpu usage. At my last job, the requirements were like: you might as well directly target embedded linux socs instead of microcontrollers like ESP-32, because the price difference between them is not that much for the number of these devices we wish to sell.