The inquires above are to determine your car’s cooling system configuration. It is critical to make sure the engine and radiator are full of coolant , not just the plastic bottle where you normally add coolant to top it off. It’s possible after hose leaks for the engine and radiator to have little to no coolant in them, while the bottle appears full, and that condition is what you have to avoid.
If I did that job on my Corolla (for reference) – 10 years older than your Camry so the cooling system configuration may not be the same as yours – I’d remove the radiator cap (when the engine is cold) and fill the radiator to about 2 inches below the brim with a 50/50 mixture. Then I’d turn the heater temp control to “max”, start the engine and let it warm up while idling with the radiator cap off, and watch – takes about 5 minutes or so of idling – for the thermostat to open and hot water to start pouring into the upper part of the radiator. It’s clear when that happens on my engine configuration. Feeling the upper radiator hose get hot all of a sudden confirms it. After a couple minutes of that, all the air would be bled out, so then I’d stop the engine, let it cool off again, then top the radiator right to the brim, install the radiator cap then fill the bottle to the cold fill mark. Check for leaks, and watch for any signs of over or under-heating while driving the first few times. Done.