No, there are unfortunately no truly workable Linux OSs for phones yet AFAIK. But there are plenty of Android-based OSs that work really well, and are usually maintained for quite a while, depending on the popularity of your device. Look into LineageOS, or Pixel Experience, to name a few.
You can also improve on that by paying for a real debrid service, which will make streaming faster and will also prevent dmca notices (if you live in such a country)
They could have used the same space and created a proper (if narrow) sidewalk with it, instead of this death trap.