There's no advantage to rolling resistance or weight by running tubeless. If that is your primary concern then tubular tyres or latex tubes are used. The only advantage to tubeless when racing is that a puncture might not end your race. You can run lower pressure, so in theory, there is improved comfort and you won't get a pinch puncture from rough roads or potholes. As with a lot things on the bike, it is great until it doesn't work. If you have to carry a spare tube and tools then there isn't really any advantage in my opinion. I have a couple of sets of wheels setup with GP5000 tubeless and I am happy to use them for shorter rides. Anything long and/or away from civilization I'm not sure I'd be setting out without a spare tube and tools. I have had one puncture on tubeless where a thorn pierced the tyre completely, the sealant had dried up during Summer months and I didn't keep on top of it. Also, on some wheels getting the tyre off/on to fit the tube can be a nightmare because the tyre has to be so tight on the rim and you need more tools....
You pay your money and take your choice.