This is very likely true. By LOC: Windows 95 is estimated to have 10-15 million LOC, Chrome 30-40 million. By binary size: Windows 95 took about 50 MB, Chrome

This is very likely true. By LOC: Windows 95 is estimated to have 10-15 million LOC, Chrome 30-40 million. By binary size: Windows 95 took about 50 MB, Chrome 200-300 MB. By architecture design: the codebase of Windows 95 is fairly shallow and monolithic, while Chrome is very modular (think V8, Blink, WASM, sandboxes...) and uses other dependencies.