Manually set wpa_supplicant driver?

I'm using a RaspberryPi 4 (4GB) and I was able to set up /etc/wpa_supplicant/wpa_supplicant.conf with all needed certificates properly, to authenticate at our companys wifi: ctrl_interface=DIR=/var/run/wpa_supplicant GROUP=netdev update_config=1 country=US fast_reauth=1 network={ ssid="WIFI-Com" scan_ssid=1 key_mgmt=WPA-EAP IEEE8021X pairwise=CCMP group=CCMP eap=TLS identity="user@domain.com" ca_cert="/etc/cert/ca.pem" client_cert="/etc/cert/client.pem" private_key="/etc/cert/clientkey.pem" }
Using wpa_supplicant -i wlan0 -D wext -c /etc/wpa_supplicant/wpa_supplicant.conf for testing, it's authenticating perfectly and obtaining a vaild IP: Successfully initialized wpa_supplicant ioctl[SIOCSIWENCODEEXT]: Invalid argument ioctl[SIOCSIWENCODEEXT]: Invalid argument wlan0: Trying to associate with 00:5d:71:c9:4d:ef (SSID='WIFI-Com' freq=5320 MHz) FT: Invalid group cipher (0) Failed to add supported operating classes IE wlan0: Associated with 00:5d:71:c9:4d:ef wlan0: CTRL-EVENT-EAP-STARTED EAP authentication started wlan0: CTRL-EVENT-EAP-PROPOSED-METHOD vendor=0 method=13 tls_connection_set_params: Clearing pending SSL error: error:14187180:SSL routines:ssl_do_config:bad value tls_connection_set_params: Clearing pending SSL error: error:14187180:SSL routines:ssl_do_config:bad value wlan0: CTRL-EVENT-EAP-METHOD EAP vendor 0 method 13 (TLS) selected wlan0: CTRL-EVENT-EAP-PEER-CERT depth=1 subject='/DC=com/DC=company/CN=Company Certification Authority' hash=53e1f7164f972fccfa24dc5dee64e362bed56ea014995fd990c760dd873760a7 wlan0: CTRL-EVENT-EAP-PEER-CERT depth=0 subject='/C=COM/L=NewYork/O=Company/CN=eap.comp.com' hash=d586970276d8076bd01cdbd4258452ea291d72af282fefa80fd8f8ef55e0c471 wlan0: CTRL-EVENT-EAP-SUCCESS EAP authentication completed successfully wlan0: PMKSA-CACHE-ADDED 00:5d:71:c9:4d:ef 0 wlan0: WPA: Key negotiation completed with 00:5d:71:c9:4d:ef [PTK=CCMP GTK=CCMP] wlan0: CTRL-EVENT-CONNECTED - Connection to 00:5d:71:c9:4d:ef completed [id=0 id_str=] $ ifconfig wlan0: flags=4163 mtu 1500 inet 10.128.131.109 netmask 255.255.255.0 broadcast 10.188.139.255 inet6 fe80::4665:3320:1509:a176 prefixlen 64 scopeid 0x20 ether dc:a6:32:2d:3e:e2 txqueuelen 1000 (Ethernet) RX packets 4329 bytes 1559945 (1.4 MiB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 5734 bytes 2019622 (1.9 MiB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
If I reboot the Pi and run ps auxwww | grep wpa its supposed to connect to my wifi, as it is using the command given above. But it's not, instead it used driver nl80211. From what I experienced, it's only authenticating properly using exclusively -D wext. Where can I edit the -D parameters, that are used while booting? root 334 .. 0:00 /sbin/wpa_supplicant -u -s -O /run/wpa_supplicant root 440 .. 0:00 wpa_supplicant -B -c/etc/wpa_supplicant/wpa_supplicant.conf -iwlan0 -Dnl80211,wext pi 721 .. 0:00 grep --color=auto wpa