Where was May You Stay Forever Young filmed?

2021 film

May You Stay Forever Young (2021) was filmed in Tsim Sha Tsui, Mong Kok, Nathan Road, Pacific Place, Argyle Street, Kwai Shing East Estate and 1 more place, 7 places named in its Wikipedia article, in China, Hong Kong. Wikidata records no filming location for it at all, so the article is the only recorded source. Each place says where its claim comes from.

See them on the map → Wikipedia Source data

Places per Wikipedia's article

The Wikipedia article names 7 places. Each links to the sentence that says so.