Yes, most I-134 is to support someone who is visiting here. However, if you have dependent(s) when you apply I-485, you have to show your application will not be the burden of US, that means you can support your dependent(s). That's the reason of I-134. Just do it, no why.
Since you are not supporting someone to visit you, you don't have to say I "intend"..., Just display your income, property value, everything required for this form. This is an easy form, you should be able to do it.
Since you are not supporting someone to visit you, you don't have to say I "intend"..., Just display your income, property value, everything required for this form. This is an easy form, you should be able to do it.