Recommended software. ALSO;- specs

I am waiting on my RPI CM4 lite. If you already have a uconsole what software do you recommend?

Also, I’ve noticed conflicting specs on the CM4, what is the clock speed? 1.8 GHz or 1.5? Main page indicates 1.8 GHz but the PDF indicates 1.5 GHz.

Thanks.

The stock speed of the Raspberry Pi 4 and the Compute Module 4 is 1.5 GHz. you should be able to overclock it up to 2.147 GHz.

Source: Overclocking the Raspberry Pi Compute Module 4 | Jeff Geerling