Top 10 receivers (my own list based on receptions, yards, and TD):
1. Jefferson (Min) - 128 rec, 1809 yds, 8 td
2. Hill (Mia) - 119 rec, 1710 yds, 7 td
3. Kelce (KC) - 110 rec, 1338 yds, 12 td (not a WR but still)
4. Diggs (Buf) - 108 rec, 1429 yds, 11 td
5. Adams (LV) - 100 rec, 1516 yds, 14 td
6. Brown (Phi) - 88 rec, 1496 yds, 11 td
7. Lamb (Dal) - 107 rec, 1359 yds, 9 td
8. Chase (Cin) - 87 rec, 1046 yds, 9 td
9. Smith (Phi) - 95 rec, 1196 yds, 7 td
10. Waddle (Mia) - 75 rec, 1356 yds, 8 td
So these top 10 receivers (on my list) included 1 non-playoff team (LV), and in two cases, two of them were on the same team (Hill/Waddle with Mia, and Brown/Smith with Phi).
So there are 7 playoff teams represented here out of the 10 WR listed.