Wait, I actually found it in my old notes lol. I was wrong. It was very similar, but it was life expectancy vs average income by country, and it was animated by year, where each node had a radius based on population.

https://ourworldindata.org/grapher/life-expectancy-vs-gdp-per-capita?country=AFG~ARM~AZE~BHR~BGD~KHM~CHN~GEO~HKG~IND~IDN~IRN~IRQ~ISR~JPN~JOR~KAZ~KWT~KGZ~LAO~LBN~MYS~MNG~MMR~NPL~PRK~OMN~PAK~PSE~PHL~QAT~SAU~SGP~KOR~LKA~SYR~TWN~TJK~THA~TUR~TKM~ARE~UZB~VNM~YEM~BRB~CAN~CRI~CUB~DMA~DOM~SLV~GTM~HTI~HND~JAM~MEX~NIC~PAN~PRI~LCA~TTO~USA

Pretty close to this, but slightly different