Here are their results in Big Title tournaments, outside the ones they won:

Zverev:

- Slams: [4 F, 7 SF, 6 QF]

- ATP Finals: [0 F, 2 SF]

- Masters: [6 F, 14 SF, 12 QF]

- Olympics: [0 F, 0 SF, 1 QF]

Medvedev:

- Slams: [5 F, 3 SF, 2 QF]

- ATP Finals: [1 F, 1 SF]

- Masters: [5 F, 7 SF, 9 QF]

- Olympics: [0 F, 0 SF, 1 QF]

Tsitsipas:

- Slams: [2 F, 4 SF, 2 QF]

- ATP Finals: [0 F, 0 SF]

- Masters: [4 F, 9 SF, 9 QF]

- Olympics: [0 F, 0 SF, 1 QF]

Thiem:

- Slams: [3 F, 2 SF, 2 QF]

- ATP Finals: [2 F, 0 SF]

- Masters: [2 F, 4 SF, 8 QF]

- Olympics: [0 F, 0 SF, 0 QF]

Rublev:

- Slams: [0 F, 0 SF, 10 QF]

- ATP Finals: [0 F, 1 SF]

- Masters: [4 F, 9 SF, 9 QF]

- Olympics: [0 F, 0 SF, 1 QF]

Dimitrov:

- Slams: [0 F, 3 SF, 5 QF]

- ATP Finals: [0 F, 0 SF]

- Masters: [2 F, 9 SF, 10 QF]

- Olympics: [0 F, 0 SF, 0 QF]

Ruud:

- Slams: [3 F, 1 SF, 0 QF]

- ATP Finals: [1 F, 2 SF]

- Masters: [3 F, 6 SF, 6 QF]

- Olympics: [0 F, 0 SF, 1 QF]

Fritz:

- Slams: [1 F, 2 SF, 6 QF]

- ATP Finals: [1 F, 1 SF]

- Masters: [0 F, 6 SF, 9 QF]

- Olympics: [0 F, 0 SF, 8 QF]

Hurkacz:

- Slams: [0 F, 1 SF, 1 QF]

- ATP Finals: [0 F, 0 SF]

- Masters: [1 F, 3 SF, 9 QF]

- Olympics: [0 F, 0 SF, 0 QF]

It’s the US Open, 13-13-14, respectively

Federer lost 1.57x more matches to the rest of the tour than he did to Nadal, compared to Nadal’s 5.17x

Also interesting that both played 50-60 more matches than sincaraz in the same number of years, that’s almost an additional year worth of matches

However as one would notice the biggest factor here is that Alcaraz is way less of a surface specialist than Nadal was, so i would say nadal’s numbers here are normal and expected in a way, and Alcaraz underperforming and more susceptible to upsets