There is no need to update the branch unless there is a conflict or perhaps a fix to the ci checks.

Would like a preset that can get close to this (p10k):

Is this PR meant to be merged already?

Would like a preset that can get close to this (p10k):

I added modules (but disabled by default): [battery], [time]
if you want to see them: search for the module in the toml file and set 'disabled' to 'false'

If you want something with background you could have a look at these (but their background is not that colorful):

• https://gist.github.com/sanmue/e04657a7ca37841c8e97e7fdf0dd6a5c
  or
• https://gist.github.com/sanmue/71eb35991107cf691336bfbf60c96b9f

There are many presets out there, maybe closer (with more color / colored background) to your liking.
(Or adjust the colors of a preset you find out there).

Is this PR meant to be merged already?

The preset is ready to be merged. I think there has to be someone of the the team with adequate access rights finding the time to check & merge it.
I can understand that 'presets' are not considered as important as bugs, ...

If you do not want to wait, just grab the toml file.