GTA6 will not have a disk release, which is why this is important for some people.
Not a big player myself, and I mostly play older game I can buy for less than $15 but every single time I have heard about a big game launch in the last decade, the games were released in early beta quality, crippled with bugs according to the tests and news.
Yes; there have been some pretty high profile cases of games launching in terrible state, and Day 0 patches have become an industry standard, but acting like all (or even most) of big games launch like this is just sampling bias.