It was never my intent to induce any inconvenience for working on multiple backends and I always knew that any support for non-Vulkan renderers would be removed eventually, anyhow. This was something that's been stated very early on, ever since the Vulkan renderer was first introduced, and even before that. So please don't mistake my interest in them as a requirement to keep them. The latest survey makes it clear that the number of people who actually need this support is very very small.
I actually do not have any interest in potato related PC's, my only interest in the GLES backend is "wow, this is cool, I can't believe this is still GZDoom".
For what it's worth, the potato backends (softpoly/GLES) are an inconvenience for mod authors, as well, since they cannot run the more modern features of GZDoom - particularly custom shaders. Also for what it's worth - phones and tablets these days are being introduced with Vulkan support right out of the box. Vulkan is the future. Even the Android port of GZDoom I suspect, will be moving forward with that as well, as time goes on. While Vulkan on these devices might not nearly be as fast as it would be on desktop devices, it's still a lot faster than the real "potatoes" that a small percentage of people are running, and will only get better as time goes on anyhow.
So yeah - I am interested in GZDoom moving forward, as well.