If somehow there is some multiverse out there that can give access to unlimited alternative copies of this world, it would be more worlds than FTL would ever allow. The point of exploring other worlds is to have more and if it's easy to move between them, even large cargo, that beats any spacefaring logistics. Infinite worlds, even if in the same place in spacetime, pretty much accomplishes the best of what FTL is about. Aside from meeting powerful and friendly alien civilizations, which has the risk of meeting powerful and very unfriendly alien civilizations.

So it would be better in terms of real estate and safety, pretty much remove all threats if we can simply move to safe dimensions if anything universe-ending happens, and solve the Fermi paradox. If it's better to have infinite worlds in the same place, no need to slog around in slow spacetime, everyone sticks at their infinite homes.

The holy grail of finding planets is always Earth-like planets and surely copies of Earth are the best you can have, especially if infinite. That would be better than FTL in most aspects. Other than the possibility of hot alien sex, which has the possibility of horrible alien sex.