Is the MEDION ERAZER Crawler E10 notebook with Wi-Fi 6 AX201 backwards compatible with my Fritzbox?

Question see above. Use the Fritzbox 7590 with WLAN 802.11ac, n, g, b, a. Or do I have to buy a Wi-Fi stick to go with it.

The Intel AX201 also has IEEE 802.11a / b / g / n / ac, so it is also compatible with Wi-Fi 4 and 5.

By the way, almost all Wi-Fi ax chips are backwards compatible with Wi-Fi 1, 2, 3, 4 and 5.