The submission title claims they are the same quality but the article has a different title, and doesn't make any claims to video quality.
Converting video from a lossy format to another lossy format with these settings will significantly degrade the quality. For a desktop recording that could be problematic, still frames could be unreadable.
Going from a lossless video file to both h264 and h265 will typically have h265 files about 30% smaller at the same quality, but this comes with significant tradeoffs for transcoding time. And there is some nuance to getting the best quality, generally there are more resources on how to do this with h264. And h265 hardware support isn't quite universal, many older mobile devices do not support it for instance.
Converting video from a lossy format to another lossy format with these settings will significantly degrade the quality. For a desktop recording that could be problematic, still frames could be unreadable.
Going from a lossless video file to both h264 and h265 will typically have h265 files about 30% smaller at the same quality, but this comes with significant tradeoffs for transcoding time. And there is some nuance to getting the best quality, generally there are more resources on how to do this with h264. And h265 hardware support isn't quite universal, many older mobile devices do not support it for instance.