That's the amount of VRAM that has shipped in budget to midtier gpu's since at least 2016 with the RX470/480 from AMD. You can find even older & slower examples from Nvidia and AMD (ex. Nvidia 740GT 4GB edition)
Gaming hardware reviewers have been complaining about 4GB of VRAM not being enough since probably 2018 onward.
I have a weird setup with two very old 5:4 1280x1024 monitors I like to use for fun, and even playing Subnautica (2018 Release date) I can use up 3.4GB of VRAM at that low of a resolution on High settings. (playing on a single monitor)
Gaming hardware reviewers have been complaining about 4GB of VRAM not being enough since probably 2018 onward.
I have a weird setup with two very old 5:4 1280x1024 monitors I like to use for fun, and even playing Subnautica (2018 Release date) I can use up 3.4GB of VRAM at that low of a resolution on High settings. (playing on a single monitor)