It's not quite ALL the sweets. Stack Pancakes and the element-converting Candy sweets aren't there. (Which is pretty funny because on Global those are the only sweets called Candy, yet the shop itself is called a Candy shop. Ah, divergent translation...)
But beyond that... sheesh. This is friggin' huge! Besides campaigns this is surely the biggest change in the update and it wasn't mentioned in the What's New page at all. Summoner has basically gone from being scuffed on Global to being remarkably easy to gear up!
It's April 2021 and Support Rolls are finally accessible. Moreover, several sweets now exist on Global for the first time. From this we get to learn of several retranslations we'd had no way to know, such as Conversion Roll (useful for Melon) being called Change Roll on Global.
Thanks for the heads-up @Mister-Sparkle. I'd visited Nanon for some upgrades a few days ago so it'd have been a while before I'd have visited again and I'll definitely benefit from knowing this immediately.
As an extended PSA, remember that the Ariel's Compress Sweets service can cost upwards of 200,000 per attempt for some sweets, but we are presently under a 0 Meseta campaign so now is an excellent time to save a fortune sorting out all your pets' endgame sweets boxes.