Enterprise (professional/enthusiast/uncle jim) nodes tend to run in a virtual machine environment (and/or in the cloud) where increasing storage size is as easy as updating a config or the storage automatically expands.

Additionally, people use their nodes with different "loadouts". Some may also have electrum or fulcrum index running alongside (adds 100-300GB). Some might be running mempool project locally (add some GBs). Some may be running other nodes like a Monero node on the same disk (adds about 300GB). It means not "everyone" will run out of space at the same time.