On a big screen, Xcode Developer Documentation (from Xcode help menu) can read pretty small, especially the side bar, when you have low vision.
At least the main pane can be enlarged with cmd-+, but it is not persistent. I usually end up closing it and looking up the info with a web browser, which is easier to move out of the way or send-to-back.
Shouldn't there be a preference for setting this too ... or even better, just return to the last magnification used? Advance apologies if I simply couldn't find it in Xcode prefs.
BTW, the "tags" function for this forum does not work well. Try typing "Xcode" in the search box then find a tag labeled "Xcode".
