Both about 100 KB and to be even more fair I used chroma quarter resolution for the JPG. Just from looking at the green door thingie you can immediately tell JPG has made everything look like dogshit. It gets much worse when you look into the hallway.

https://files.catbox.moe/m6z4uk.webp

Remember this is quality 80 of Webp, a high quality setting where JPG and Webp often achieve parity with each other. It gets much much worse at quality 60 and often at quality 50 and below JPG cannot even match the file size.