No professional in their right mind is using a 24" monitor other than maybe as a second monitor. Also 4K on 24" is 183dpi and would require at least 150% scaling to be even readable. 4K 32" needs at least 125% scaling.
ViewSonic's new VP2488-4K is a 24-inch 4K IPS monitor with 98% DCI-P3, 100% sRGB, Pantone validation, Thunderbolt 4, and pro-grade ergonomics. Priced at $549, its main demographic is creative professionals.