The issue is related with FriendlyElec NanoPC T6 LTS (platinum support) but there were no separate category.
The SoC was merged to mainstream kernel in 6.7 version. It is properly recognized and a module is loaded but there is an issue with loading a firmware:
root@nanopct6-lts:~# dmesg | grep -i bluetooth
[ 9.068631] Bluetooth: Core ver 2.22
[ 9.069414] NET: Registered PF_BLUETOOTH protocol family
[ 9.069422] Bluetooth: HCI device and connection manager initialized
[ 9.069435] Bluetooth: HCI socket layer initialized
[ 9.069442] Bluetooth: L2CAP socket layer initialized
[ 9.069458] Bluetooth: SCO socket layer initialized
[ 9.251768] bluetooth hci0: Direct firmware load for mediatek/mt7925/BT_RAM_CODE_MT7925_1_1_hdr.bin failed with error -2
[ 9.251777] Bluetooth: hci0: Failed to load firmware file (-2)
[ 9.252287] Bluetooth: hci0: Failed to set up firmware (-2)
[ 9.252776] Bluetooth: hci0: HCI Enhanced Setup Synchronous Connection command is advertised, but not supported.
[ 11.175222] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[ 11.175230] Bluetooth: BNEP filters: protocol multicast
[ 11.175236] Bluetooth: BNEP socket layer initialized
root@nanopct6-lts:~# dmesg | grep mt7925e
[ 9.073757] mt7925e 0003:31:00.0: enabling device (0000 -> 0002)
[ 9.075567] mt7925e 0003:31:00.0: Direct firmware load for mediatek/mt7925/WIFI_RAM_CODE_MT7925_1_1.bin failed with error -2
[ 9.079873] mt7925e 0003:31:00.0: ASIC revision: 79250000
[ 9.157219] mt7925e 0003:31:00.0: Direct firmware load for mediatek/mt7925/WIFI_MT7925_PATCH_MCU_1_1_hdr.bin failed with error -2
[ 9.236988] mt7925e 0003:31:00.0: Direct firmware load for mediatek/mt7925/WIFI_MT7925_PATCH_MCU_1_1_hdr.bin failed with error -2
[ 9.319744] mt7925e 0003:31:00.0: Direct firmware load for mediatek/mt7925/WIFI_MT7925_PATCH_MCU_1_1_hdr.bin failed with error -2
[ 9.402872] mt7925e 0003:31:00.0: Direct firmware load for mediatek/mt7925/WIFI_MT7925_PATCH_MCU_1_1_hdr.bin failed with error -2
[ 9.480248] mt7925e 0003:31:00.0: Direct firmware load for mediatek/mt7925/WIFI_MT7925_PATCH_MCU_1_1_hdr.bin failed with error -2
[ 9.559599] mt7925e 0003:31:00.0: Direct firmware load for mediatek/mt7925/WIFI_MT7925_PATCH_MCU_1_1_hdr.bin failed with error -2
[ 9.639770] mt7925e 0003:31:00.0: Direct firmware load for mediatek/mt7925/WIFI_MT7925_PATCH_MCU_1_1_hdr.bin failed with error -2
[ 9.719790] mt7925e 0003:31:00.0: Direct firmware load for mediatek/mt7925/WIFI_MT7925_PATCH_MCU_1_1_hdr.bin failed with error -2
[ 9.799481] mt7925e 0003:31:00.0: Direct firmware load for mediatek/mt7925/WIFI_MT7925_PATCH_MCU_1_1_hdr.bin failed with error -2
[ 9.883152] mt7925e 0003:31:00.0: Direct firmware load for mediatek/mt7925/WIFI_MT7925_PATCH_MCU_1_1_hdr.bin failed with error -2
[ 9.963791] mt7925e 0003:31:00.0: hardware init failed