It's great to see that there are exciting developments with Lightning Network, and your article looks like a comprehensive overview of some interesting projects that are leveraging the technology.
While there is always some risk when it comes to any type of transaction or investment, especially with newer technologies that can still be improving; I believe implementing blockchain and Lightning-based Loyalty Schemes, payment solutions could revolutionize business models by providing benefits for both businesses and customers while also adding an additional layer to enhance security for transactions.
Projects like Jolz Rewards or Mash could create novel synergies between cryptocurrency offerings and traditional loyalty schemes. By using BRAAS (Bitcoin rewards as a service), businesses can offer their customers Bitcoin as rewards instead of traditional reward mechanisms adding more value to the customer experience.
Boltz's Liquid Swaps, on the other hand, highlights full-scale optimization within crypto operations offering users cost-saving measures across trading operations
Overall it seems like these projects demonstrate significant potential in streamlining bitcoin transaction workflow and paving the way towards further integration into everyday use cases.