We live in a capitalistic world and therefore what Laravel has done, and its good they did it is they monetized the admin dashboard by creating Nova. That is the dashboard they created. They aren't going to create a free one.
I'm using filament and its great so far.
With Nova if you want updates you'll need to pay additional $99 each year, IF you want updates.
Just because Nova is made from the Laraver owner doesn't mean its the best either. So I wouldn't just go for Nova because it doesn't have that many great reviews either.
Its your choice but Filament is a popular one for free, and there are few others ones as well.
https://orchid.software/
https://litstack.io/
https://backpackforlaravel.com/
https://filamentphp.com/
https://nova.laravel.com/
https://sharp.code16.fr/docs/
But yeah, I would then research reviews for each. Ultimatelly if money don't matter you can buy what you like, try it in and see what you like or what fits your project.