Room Functionality Layout Advice

I need advice on improving the functionality and comfort of a multi-use living space, which serves as our kitchen, dining, work, and leisure area. Specifically, I'm looking to optimize the furniture layout for better functionality while making the most of what we already have. Some new additions may be considered if practical. I'm open to creative suggestions that might involve repurposing existing furniture, depending on the ideas presented. The solution should enhance the usability of the space for all its activities without disrupting its versatility.