first, found this 23:
F' L2 D R2 // 2x2x2 on UBR (4/4)
(D' @ F L2 D' L) // XX-Cross on B\U (5/9)
(L' R F2 R' F L) // 3rd pair on DLb (6-2/13)
(R U F' U' R') // sq on Fdl + EO on FB-axis (5/18)
(R U' R U R2) // all edges, leaving 3c, -2 on normal (5-3-2/18)
@ = [D B D', F'] // insert 3c comm (8-3/23)
//==========================================================
then found a different 23:
(D' L' U) U // EO on UD-axis (3+1/4)
(L F L2 F) // 2x2x2 on UFR (4/8)
(D2 F L2 F') // edge on DR + sq on B + sq on L (4/12)
(B' L B') // F2L-1p on R-DF + keep sq on L (3/15)
(L # F L F') // F2L on R, leaving 3c on L (4/19)
# = [L' B' L, F2] // insert 3c comm (8-4/23)
//==========================================================
then found this 22 using the same 222-start as the first solution:
F' L2 D R2 // 2x2x2 on UBR (4/4)
(F2 D' L' F' L' F' $ L2 D2) // sq on D + sq on F + lots of pairs (8/12)
(F' L2 D' L) // all but 2c2c (4/16)
$ = [F, L B' L'] // insert 3c comm (8-5/19)
skel: F' L2 D R2 L' D L2 F D2 L' B' L' F L % B F L D F2
% = [L', F' R' F] // insert 3c comm (8-5/22)