I have a China passport. I want to travel to Thailand first and then fly to Indonesia, so I should apply for a visa to Thailand first. Can I apply for a visa to Indonesia at the same time?

I can answer your questions about Indonesia. I have lived in Indonesia for two years.

Indonesians can get a 30-day visa to landing visa, and the cost is $25 (landing visa seems to be able to extend it for 30 days now), but the customs will ask you to show your return ticket when you enter the customs, and it will be a bit troublesome if you don't book a return ticket.

Indonesian Customs is very corrupt and likes to ask China people for money, but as long as you have all the documents and procedures, you will be fine.

Don't give money even if he gives you a hard time. I'm afraid of being blackmailed every time I go back and forth, hehe.