How did I limit the memory consumption of Elasticsearch 8 in Windows 10?

Step 7

I set the ES_JAVA_OPTS environment variable to -Xms1g -Xmx1g to limit memory usage to 1Gb.
elastic.co/guide/en/elasticsearch/reference/8.8/advanced-configuration.html#set-jvm-heap-size
Setting it via config\jvm.options.d\jvm.options does not work for me for an unknown reason.