No, we don't have more styles for Mapbox render engine therefore you need to create/rework you own.
The defined style on https://assets.vector.hereapi.com/styles/berlin/base/mapbox/tilezen?apikey=
should be compatible with Mapbox Style Specification https://docs.mapbox.com/mapbox-gl-js/style-spec/
If you open this https://assets.vector.hereapi.com/styles/berlin/base/mapbox/tilezen?apikey=
directly then you can see 'layers' property that compatible with the description on https://docs.mapbox.com/mapbox-gl-js/style-spec/layers/
E.g. each layer object has property 'id' that is mapped to Mapbox layer id and layer object has a property 'source-layer' layer id to use from a HERE Vector tile source (description on https://developer.here.com/documentation/vector-tiles-api/dev_guide/topics/layers.html and https://developer.here.com/documentation/vector-tiles-api/dev_guide/topics/layers.html#tile-layers).
To find layer ids of Mapbox use this description https://docs.mapbox.com/help/glossary/layer/#finding-layer-ids
To find layer ids of HERE Tiles use it https://enterprise.here.com/map-style-editor/
Using 'filter' property https://docs.mapbox.com/mapbox-gl-js/style-spec/layers/#filter for define an expression specifying conditions on source (HERE Vector Tile) features.
Basically you need to rework color styles in the https://assets.vector.hereapi.com/styles/berlin/base/mapbox/tilezen?apikey=
and save it to your's internet resources