How am I best sorting my Windows 11 laptop ready to sell?

In the time I had my Dell laptop, I have upgraded the SSD, so in the process, don't have the recovery image etc
I was wanting to do a clean install and have the setup at the point where the person can put their name etc in, what they want to call their profile, like it would be when you just get one new.

But that is where I feel a bit stuck, because I don't have the Dell recovery image now, none of the build in Dell software would be then included if I do it that way.

During a fresh installation of Windows 11, how do I know when I am at a point where it can stop the installation, so when the person gets it, they just finalise it to their liking?

Would you, just not bother with the Dell built in software, and sell it as I have mentioned above?