Officially, not really. The 'scene' is a tad too big for that, although some circles publish on bandcamp sometimes (mainly those who can't attend the physical convention).

In the west, there used to be forums (like doujinstyle) dedicated to sharing new releases after every event, which turned into large discord servers in the past year. Otherwise, a lot of the releases can be found on Asia-oriented private trackers as well.

These are often the only way to get a chance of actually listening to the album, since there's generally a limited number of physical albums available for sale at the event, and reprints during the next edition of the convention are uncommon.

How do you go about finding the chillwave community on Bandcamp?