Hi @feradams,
Thanks for reaching out.
Envira gallery extensions show the images in a single lightbox along with the navigation.
In case you want to use Envira Gallery then you can create multiple galleries using a single image on each with the lightbox option.
So it will open with the lightbox with a single and no navigation.
Alternatively, I suggest you try this by using the Essential Grid extensions. It has the features you need. Please visit the links below for more details and plugin usage instructions.
I have created the same gallery here for your reference: https://rec.secdns.co/tristup/cast-away/#gallery
Hope it helps.
Thanks