I have the information available in the Cheatcodes:
Then I have Capricorny's reply on 32 or 64 bitknoppix64
With DVD version 7.4.0 and upward the bootloader will start the 64bit kernel automatically if a 64bit-capable CPU is detected (if not manually specified otherwise).
Which eventually brings me to the obvious question: Is Knoppix 8.6 fully 64 bit? Also, are all packages currently available on the Knoppix DVD 64 bit too?
Gigabyte Aorus Ultra Durable B550 AORUS ELITE AX V2 Desktop Motherboard
$29.94
ASRock Z170M-ITX/ac LGA 1151 Intel Z170 HDMI USB 3.0 Mini ITX Intel Motherboard
$49.99
ASRock B550M Pro SE AM4 DDR4 SATA 6Gb/s 1 PCIe 4.0 x16 Micro ATX Motherboard
$84.99
MSI H81M-P33 Desktop Motherboard Intel MicroATX Socket LGA1150 USB 3.0 W/IO
$26.99
Gigabyte GA-Q170M-D3H-GSM LGA1151 DDR4 Desktop Motherboard (No I/O Plate)
$39.99
Asus Prime H310M-A R2.0 Intel LGA 1151 DDR4 Desktop Motherboard
$54.99
Asus H81M-C Intel LGA1150 DDR3 Desktop Motherboard MicroATX Socket H3
$23.99
Gigabyte GA-Q170M-MK LGA 1151 DDR4 Desktop Motherboard W/ IO
$40.95
MSI PRO B650-P WiFi AMD AM5 DDR5 WiFi 6E ProSeries Motherboard
$107.30
Gigabyte GA-Q170M-D3H-GSM LGA1151 DDR4 Desktop Motherboard with I/O Plate
$49.99