Sounds like there are some good alternatives out there based on the other replies to your question.

I guess I couldn’t go past the nostalgia.

I recently bought mIRC for this purpose after 30 years of borrowing it. Felt like I needed to being a relevant piece of software after all this time.

I’ve switched to Memmy for now, seems a bit more stable. Keeping an eye on Voyage.

This first app to allow full screen swipe back will win for me.