Why are Progressive Democrats having more success in primaries than America First Republicans?

An interesting trend seems to be apparent in primaries in 2022 for various offices. It seems like Progressive Democratic primary challengers generally outperform America First Republican primary challengers. There are many examples of America First challengers failing and Progressive ones succeeding.

1. In Texas's governor race, Greg Abbott won the nomination with 66% of the vote despite being labeled a RINO (Republican In Name Only).
2. In Georgia, Jody Hice and David Perdue lost their challenges, with Perdue losing by a stinging margin.
3. In North Carolina, an incumbent America First candidate, Madison Cawthorn, lost his primary presumably because of scandals. No incumbent Progressives came close to losing primaries that I'm aware of.
4. In the 2022 primaries, in terms of high profile races, every progressive candidate, except for Nina Turner, did not suffer huge losses like America First candidates are so far. Summer Lee, a Progressive narrowly won her primary, and it looks like Jessica Cisneros might as well in a runoff though it seems more likely she narrowly loses.

Why are people challenging from the left winning elections more than right wing ones?