How to connect Vertex?

Question

Blender

Hello.
How to connect these polygons to make a hole?

Answer 1

In this case, most likely, by hand. But you can try the F2 addon, it is in the blender, you don’t need to look for it separately.
Here it is shown a bit about him - https://www.youtube.com/watch?v=nU0tF6jP7YY
Here is how to fill elongated holes - https://youtu.be/ImSNOuvkKsw?t=89
because the number of vertices does not match