I had a hard time visualizing the flow of this chapter so made an attempt at reorganizing the structure you outlined above @johnsBeharry as if I had tackled it in my own way. I do not want to step on any toes here, please see this as an attempt to help.

Basically all the same information you have outlined should fit in here, I have just attempted to streamline it from a readers point of view. It might be easier to comment in a doc so here's a link: https://docs.google.com/document/d/1Dhu2StMmHEDVTSNdlkQ7Asl695Z97c5qt7j1adjxV3s/edit?usp=sharing

### [Page] - Payments introduction
(give an overview of the chapter with links to individual pages, similar to https://bitcoin.design/guide/getting-started/introduction/)

- Transactions overview
- Sending bitcoin
- Receiving bitcoin
- Transaction privacy
- Bitcoin transactions in depth
- Lightning transactions in depth
- Managing funds

### [Page] - Transactions overview
Introduce basic transaction concepts and the lifecycle.

- Bitcoin vs Lightning transactions
- Push vs pull transactions
- Transaction life cycle

Link to glossary, foundations etc for things terms that need longer explanation (Units & symbols, address types etc.)

### [Page] - Sending bitcoin
Explain what goes into sending bitcoin.

- Sending regular bitcoin
- How it works
- Best practices
- Variations (if relevant)
- Sending bitcoin with the Lightning network
- How it works
- Best practices
- Variations (if relevant)
- Sending from a multi-sig wallet
- How it works
- Best practices
- Variations (if relevant)

Link to advanced information on separate page (like coin selection, coin join, labels etc.).

### [Page] - Receiving bitcoin
Explain how receiving/requesting bitcoin works.

- Receiving/requesting regular bitcoin
- How it works
- Best practices
- Variations (if relevant)
- Receiving/requesting bitcoin on the Lightning network
- How it works
- Best practices
- Variations (if relevant)
- Merchant payments
- How it works
- Best practices
- Variations (if relevant)

Link to advanced information on separate page.

### [Page] - Transaction privacy
Explain concepts around the privacy of transactions.

### [Page] - Bitcoin transactions in depth
Explain advanced concepts and actions you might have mentioned/linked to above in more depth.

- Addresses
- Types
- Validation
- Display
- QR codes (unless this is done in Glossary)
- Creating a transaction
- Funding a transaction
- Signing
- Multiple signers
- Filetypes
- Broadcasting
- Fee
- Speeding up / Canceling
- Confirmations
- Change
- Account discovery and scanning
- Notifications
- Dust attacks

### [Page] - Lightning transactions in depth
Explain advanced concepts and actions for Lightning you might have mentioned/linked to above in more depth.

- Lightning overview
- Lightning nodes
- Invoices

### [Page] - Managing funds
Explain concepts around managing funds.

- Transaction history
- Labeling
- Security

### [Page] - Case studies (if wanted)
Show prototypical designs of common user flows.

- Sending bitcoin
- Sending with lightning
- ....