No, the new Galaxy S24 & Galaxy S24+ smartphones will not support advanced Wi-Fi 7 technology. Both will still launch with Wi-Fi 6E, which is the most recent Wi-Fi version. As per the listed devices on the official website, only Galaxy S24 Ultra will support high-speed Wi-Fi 7. It has also been listed on an authoritative Bluetooth SIG website as well as it is confirmed in recent leaks.
There is a chance the next Wi-Fi version will come with Galaxy S25, S25+ & S25 Ultra models, but this year it may not be possible. The details mention, Wi-Fi 7 will run on 320MHz channel and supports up to 46Gbps speed. It will provide crazy internet speed for downloading heavy files, streaming 4K content, and uploading 4K or 8K videos.