The M1 MacBook Air is cheaper than the XPS and nearly as fast as the Pro. All TB4 means is that the Dell can connect to 2 external monitors or an 8K. Not that I trust integrated graphics on an 8K monitor (if you can even find one).Competition is good for us as customers.
The price for the M1 Macbook Pro and let's say a dell XPS 13" 11th gen i7 is nearly the same (well the XPS is 10% less with 16gb memory more) - so it is legit to compare the performance.
Btw. the Dell has Thunderbolt 4 and a Micro SD slot.