Windows will create the needed partitions. You can delete the partitions during the install procedure when asked where you want to install Windows 11. I assume you want to clean install and get rid of the recovery partition and the Dell partition. That is what I do the first thing after getting a new Dell. I like to wipe the drive from all the bloatware and start with a clean install on a clean drive.
I'm reinstalling Windows on my desktop. This is the first computer I've had that had dual internal hard drives (2 2TB drives). Usually when reinstalling Windows I just delete every existing partition and let Windows create the ones it needs during the install. Drive 0 appears to be the data hard drive and Drive 1 appears to be the one where Windows is installed based on the partitions of each drive. Can I just delete all partitions like I do on my laptop, and will Windows create the needed partitions for each drive? Here is a list of my partitions: System
XPS 8940 Reinstalling Windows 11