Yes. It seems to me that if God's message needed us to know these things, He would have made them very plain and clear for us. But they are not; there are all sorts of opinions held by good and God-loving Christians.
That being so, I try to base my faith on the things He clearly tells us about.
These types of statements make me smile - that you and I can agree on this and yet disagree on so many things. Still, it's an important lesson that Christians can disagree and still regard each other as brothers in Christ.
It would be easy to concoct all kinds of speculative scenarios where the beetle manages to avoid death, but working within the intent of the OP, if a dinosaur stepped on a beetle, it would die. Beetles with special dinosaur-resistant powers did not exist in antiquity nor dinosaurs with beetle-radar. Whether such a thing ever happened in Eden ... we just don't know.
Again, working within the intent of the OP, the example isn't really necessary. The question is: Was there death in Eden? Again, it becomes a "What do you mean by death?" thing that ends in "I don't know." It ends that way not because I don't know what I mean, but I can't be certain what God meant by "death".
With that said, my current theology includes the following:
* When God spoke to Adam & Eve, Adam didn't turn to Eve and say, "I see his mouth moving, but all I hear is "Wah Wa Wa Wah Wa Wa". In other words, When God spoke Genesis 2:17 Adam understood him. That means Adam knew what death was. I suspect he knew because he had seen it.
* Though in biological terms plants are life, in theological terms they aren't. Plants don't have souls that need saving - that hope for eternal life. Maybe harvesting plants for food was enough of an analogy for Adam to understand death, but I suspect there was more to it.
* I don't separate body, soul, and spirit as the Greeks did. Dead is dead. "Spiritual death" is not in my lexicon, though it could serve a purpose to define nonbelievers if it weren't constantly conflated into an experiential reality. What would that even mean? That the spirit dies? But ... what then of hell?
* While living in Eden, death was always a possibility for Adam & Eve. The only thing that prevented it was that God allowed them to eat from the Tree of Life. As such, the Tree was both a physical reality and a powerful symbol and foretelling of Christ's future work on the Cross - the Tree of Life. Without the Tree of Life, there is no eternal life, but only death. Therefore, banishment from Eden was a death sentence, and Adam & Eve knew it. That is something that maybe only the churches who have retained the Sacraments understand - that outside of Eden God has partially restored what Adam & Eve had in Eden.
Were animals allowed to eat from the Tree of Life? Maybe. The Bible never says, so we don't know. But, there is a strong implication that banishment from Eden meant there was always something of creation outside Eden. Animals were already living (and dying) outside Eden. There is also a strong implication Adam & Eve knew that. Maybe they traveled outside Eden as part of their role as caretaker. If so, they saw death.
There is a rather obscure aspect of Lutheran theology that is rarely mentioned, and seems to be unique to Lutherans. That is, when Adam & Eve left Eden the thing they lost as a result of Original Sin was their status as a creation in the image of God. Leaving Eden meant they became animals in a literal sense. It is to that status that Christ restores us. That was always the purpose of the Christ, even in Eden where Adam & Eve walked with him.