In total approximately 70% of incoming radiation is absorbed by the atmosphere and the Earth’s surface while around 30% is reflected back to space and does not heat the surface. The Earth radiates energy at wavelengths much longer than the Sun because it is colder

https://wmo.int/suns-impact-earth#:~:text=In total approximately 70%25 of,Sun because it is colder.

No, the energy captured by solar panels wasn’t already going to turn into heat to be released and trapped by earth’s atmosphere.