Have a 6 years old vented dryer.

Speed ...debatable these days. Condenser for sure slowest of the three. Modern heat pumps get very close to Vented dryers nowadays but price also 4 to 5 times the price of a vented dryer.

Exhaust pipes aren't necessarily needed, majority of vented dryers in Malaysia usually will have literal vents in the front (see circled part in image)



But there are vented dryers that have back vents and that will usually need an exhaust duct (example: the well-known and reliable Toshiba TD-H80SEM, can see here: https://youtu.be/xDUWQWKg3k0 )

This also means that if you don't have a yard and you don't get exhaust pipes, you'll get hot air pumped into the house.

My condo has a covered yard area and I usually have to close the yard door when the dryer is running to prevent the heated air going in the main unit.

If your condo is the kind with no yard and cannot route exhaust pipes outside, it's recommended to use heat pump or condenser dryers.

In my opinion and tolerance, it's honestly not THAT hot, compared to Malaysian heat wave 😂 about on par with having a low/mid-heat hairdryer constantly blowing at low speed settings when the dryer is on. But I am also an outdoorsy type so I have no issues with heat as long as there's airflow, you might feel differently.

I've done other chores in my dry kitchen while the dryer is going and keeping the windows and doors of the yard open, no problems for me.

Since your yard has windows, a vented dryer more than sufficient if you can't afford the upfront cost.

Just bear in mind that vented are power inefficient and the heated air may also cause air-conditioning to run inefficiently if you're trying to keep condo cool at the same time with aircon.