I don't feel that at all, I don't notice any degradation to speak about, nothing stands out to me except that my ears can relax when listening on LS. But I don't have experience with any gear outside that, or any musical knowledge etc. The upper ends are rounded off and not jab-sharp, and the low bass is noticeably cleaner, more natural, and slightly more powerful on the LS.
In another thread someone said the Vali 2 is still very analytical etc, so I personally decided to not bother with Vali 2+, and just resell the Magni 3+ and stick with the LS.
I just couldn't find an instance where the Magni 3 sounded better than the LS. Be it in gaming or music listening, as I was swapping both in and out. Yet each time the LS sounded noticeably smoother and nicer!
Other gear: Modi 3+ DAC and Hifiman 400i 2020 headphones. I was so impressed with the LS amp that I decided to order the LS DAC as well and see if it produces any difference vs the Modi 3+. It arrives tomorrow.
note: it could (and probably does) all come down to the headphones. Some are driven better by certain amps/dacs than others.