Can I just say that is awful advice. There’s an easy way to save it:

“Tell me where you are and I’ll give you a few good options to start with”

When the poster is clearly a hopeless beginner this kind of response is useless and overwhelming in information that they have no chance of understanding.

Ignore the elephant in the room, the change in climate change.

Plant native plants to help your local ecosystem while something changes it for you.

Plant plants that restore function and are adapted to a wider range of climatic conditions. Don’t plant plants based on what it was like before colonisation 250 years ago.