The Dutch with Mark Rutte have a significant undercount of Covid-19 deaths. Furthermore their policy have differed greatly ... see start of the booster campaign ... the Dutch started when Omicron had arrived at the end of November. The luck of the stupid, the Netherlands had to go into a lockdown mid December as Belgium kept business and bars/restaurants open.

The lockdown has benefited greatly to keep hospital beds and ICU occupation quite low. See my latest data ...

Present Deaths Covid-19 Selected Countries

England opens up contrary to well founded advice of SAGE.

'Sapere aude'

But Belgium had for a year an interdiction of its own citizens to travel outside of the EU and very strict contact tracing (associated to free testing everywhere), all these were not in place in NL.

The criteria for labeling a death as "COVID" are not the same in the two countries; this was pointed out as early as 2020: Belgium is probably over-counting, The Netherlands...