Why does /home have to allocate a lot of space?

Question

linux

According to the guides, it is recommended to set the root size to 23-50GB, everything else is for home. But why should all the remaining space be allocated to home? After all, all software is not installed in the home folder, only the settings are in home. But root will eat up a lot of space with installed programs and dependencies. Well, ok, if you store music or a bunch of photos on one disk with the system, this is probably justified, but if all the garbage is on the second disk? It turns out that less space should be allocated for home than for root? In general, what do you think, how much space should be allocated for home and is 30-50GB enough for root?

Answer 1

Your whole question is full of conventions.
"root size 23-50gb" - true, if some bunch of strange huge software is not installed on the server, and also - if there is another partition, for large pieces of data like databases, archives and logs.
"why should all remaining space be allocated under home?" - it is fair if users are not given root rights => all their software (as well as music, video and other rubbish) they are forced to put in a hamster.
Summarizing - it is not worth highlighting separate sections "just like that" at all. It's one thing - if you want, for example, to be able to update / reinstall the OS more or less painlessly without losing any necessary information (the hamster is often taken out to a separate section precisely because of this), another - if, say, you have there is a capacious array of slow disks and a small one of fast ones - then you can make a separate partition for data, the access speed to which is important. Or vice versa - if you do not want to load the device with a constant recording of logs.
The universal rule is to start from needs.