[lacksconfidence]

Minecraft has made this a bit confusing, but there are two completely independent implementations of minecraft, the java edition and the bedrock edition. The poster above you was referring to the bedrock edition for linux.

* The java edition has always had a fairly limited render distance, although recently they split render distance and simulation distance into separate options which allows for higher render distance than in the past. (There are also mods like bobby, but it wouldn't help you find end cities: https://www.curseforge.com/minecraft/mc-mods/bobby)

* Bedrock edition, designed to be capable to run on mobiles, has the ability to run very high render distances on pc.