Vietnam or Indonesia for a 3-week solo trip in mid-June from Toronto?

Hey everyone, I’m trying to choose between Vietnam and Indonesia for a 3-week solo trip, likely flying from Toronto around June 15, and I’d love some advice from people who’ve done either (or both).

What I’m looking for:

• easy to meet people / good hostel social scene
• great food
• lots to do
• a mix of nature, culture, cities, and some adventure
• not just a pure beach trip, but I do want some relaxing / scenic time too

The two rough routes I’m considering are:

Vietnam:
Hanoi → Ha Giang Loop → Ninh Binh → Phong Nha → Hue → Hoi An/Da Nang → Ho Chi Minh City

Indonesia:
Ubud → Canggu → Gili T → Uluwatu → Yogyakarta → Bromo

My main concerns are:

• weather in mid/late June
• which one is better for a solo traveler
• which one has the better balance of social scene + food + activities
• whether Vietnam in June is still worth it, or whether Indonesia is the smarter move

From what I’ve read so far, Vietnam seems like the more intense / varied / food-heavy trip, while Indonesia seems like the easier weather choice and maybe a bit more relaxed.

For people who’ve done one or both:

• Which would you choose for 3 weeks solo in mid-June?
• Is Vietnam in June actually fine, or does the weather make it noticeably worse?
• Does Indonesia feel too Bali-heavy / beachy compared to Vietnam, or is that unfair?
• Which trip would you personally be more excited to do?

Would really appreciate honest opinions, especially if you’ve traveled there solo around that time of year. Thanks!