If there any reason why there are no 802.11AX network adapters (except for Intel AX200)?

There are tons of routers available with 802.11AX already but nearly no client devices. From what I remember at the time of release 802.11AC, there were a bunch of adapters released along with the routers.

I specifically don't like the Intel devices because you can't use them as Access Point mode in 5G bands.

There are tons of routers available with 802.11AX already but nearly no client devices. From what I remember at the time of release 802.11AC, there were a bunch of adapters released along with the routers.

Without MU-MIMO and especially OFDMA (which MikroTik) doesn't support, an 802.11ax adapter doesn't have much value.