Sure they do: https://prodemos.nl/kennis/informatie-over-politiek/wat-is-e...

'het kabinet' or 'de regering' is the executive branch in NL. You don't need a president to have an executive branch.

Eerste/tweede kamer. Legislative, make the laws Ministers/staatssecretarissen, executive, implement policy Hoge Raad etc, legislative.

Look up trias politica