Version Used:
.NET 6.0.0

Steps to Reproduce:

var s = "a";

object result = s switch
{
	"a" => (int) 1234,
	"b" => 3.14,
	"c" => true,
	_ => throw new Exception("")
};

Console.WriteLine(result2.GetType().Name); // Prints "Int32"!

Compare with:

var s = "a";

object result = s switch
{
	"a" => (int) 1234,
	"b" => 3.14,
	_ => throw new Exception("")
};

Console.WriteLine(result2.GetType().Name); // Prints "Double"!

Expected Behavior:
Second example should behave like first, and not implicitly cast to Double, since it has an object-typed target.

Actual Behavior:
Second example implicitly casts to Double, costing me hours of unnecessary bug tracking to try to understand why some values in my program unexpectedly came out as Double instead of Int after I removed some cases from a simple switch expression.