First - It's great to see the progress! Keep going!

Second - This whole UI is backwards, wasting a lot of interactions! Focus on making the most common interactions the fastest and the most intuitive.

When user clicks on the initial Receive, at that point you can immediately show QR code, so the user doesn't need to interact more (pick a good default - at this point I'd probably do LN address QR).

Below the QR code you can have "Copy" button and a selection of payment types (ln address, bitcoin address, "Scan QR to Redeem") and advanced settings (set amount, description).

A bit in parallel - your buttons are taking a full width, which sort of wastes space and adds interactions.

Consider doing "smart buttons", where e.g. "Bitcoin Address" button be aligned to the left and on the same row to the right could be 2 square icon buttons - one with copy icon and the other with QR icon. That way it's much faster to use.