All our beds have wood frames and slats - we’ve never had any issues. Sorry, can’t comment on metal bed frames but since by design they are pretty strong I doubt there would be any untoward issues.
Forget leather furniture - it just doesn’t do well in the heat and humidity. Better to have furniture with good quality cloth upholstery. If outdoors or in areas where the furniture is exposed to bright sunlight use “Sunbrella or similar fabrics.
Wicker furniture works well indoors or in well covered area. Do not use wicker if furniture will be exposed to rain as water and/or extreme dampness will deteriorate the wicker.
Teak furniture is excellent. “IKEA stuff” and other furniture made from particleboard will not stand up to heat and humidity without warping so give it a pass.
Veneers, if applied correctly, are not a major concern but can separate if they are exposed to extreme heat so a lot depends on conditions inside your home. Do not use veneer furniture on outdoor verandas or patios.
Open vs. closed shelving depend on “local conditions” in your house. Obviously if you live in a dry dusty area with constant breezes items kept on open shelving will get covered in dust. Use your common sense to decide what will work best for your situation.