Should I renew my passport before applying for a visa in Thailand, and what proof do I need to show I can manage my companies remotely?

The user inquired about whether to renew their passport before applying for a visa to Thailand, and what documentation is needed to prove their ability to manage their companies remotely while living there. Community members advised that the visa will not be transferred to the new passport, so both the old and new passports will need to be kept. They also suggested providing company registration documents and a letter allowing remote work for proof of income.