There was various adhoc hackish support for compressed RAM and swapping to various RAM-like things (eg. VRAM) in Linux since at least 2004. But around the 2010

There was various adhoc hackish support for compressed RAM and swapping to various RAM-like things (eg. VRAM) in Linux since at least 2004. But around the 2010 doing such stuff started to be somewhat worthwhile for somewhat normal use cases and not only neat trick that had some questionable benefit for live-CDs and nothing much else.