Ayliva actually made a pretty clear sound shift in 2024/2025, and that was probably a deliberate artistic decision. Artists in her genre regularly experiment with new production styles because the market moves fast and they want to keep growing themselves. Trap-pop is just more prevalent in the charts right now, and a lot of artists notice they get bigger reach with it.
Labels probably have only limited influence on that - they do have a say, but real artists push back if a direction doesn't work for them. What's actually more interesting is which producers and collaborators she's gathered around her. Working with other musicians shapes the sound way more often than any label requirements do.
Pro tip: If you're more into her earlier stuff, check out her playlist history on streaming platforms - you can often see which older tracks she still regularly rotates herself. That sometimes gives you a feel for whether the artist still likes their old material or if it's really done for them. With some artists you notice they just take their own development seriously and can't really connect with their old work anymore.