Lest we quibble over visible/invisible and what Protestants believe on the matter - being a former Presbyterian elder and deacon, I thought I’d dig out my Westminster Confession - the standard for most in the Reformed tradition…
Chapter 25, On the Church:
“I. The catholic or universal church, which is invisible, consists of the whole number of the elect that have been…”
So, there is an invisible church in that we do not know who all the elect are. So, whether or not you’re one of the elect, I cannot say nor can you say of me.
“II. The visible church, which is also catholic or universal under the gospel…consists of all those throughout the world that profess the true religion, together with their children; and is the kingdom of the Lord Jesus Christ, the house and family of God, out of which there is no ordinary possibility of salvation.”
That last part sounds exactly like something a Catholic would say

. But, the visible part of the church seems rather difficult to nail down here in light of item I. If I cannot know whether or not you are in the invisible church, how would I know whether or not you were in the visible?