The 7.4.3 zip file at https://github.com/salesagility/SuiteCRM/archive/v7.4.3.zip does not contain a cache sub-folder.
The 7.4.3 zip file at https://suitecrm.com/download does contain the cache sub-folder.
I first tried an install with the github no-cache folder version and just manually created a cache sub folder. I was able to complete the install, but when I logged in the first time I got 403 errors on a number of files in the cache sub-folder. The files had been created by the install, but they just weren’t accessible to the end user. (See attached screenshot.)
I next tried an install with the suitecrm.com version of the zip file. When I logged in I did not get the 403 errors as before.
I’m a first time user and I’m looking forward to exploring!