The NF&G club basically won everything they asked for other than the right to cross private land owned by DLCC to fish the lakes;
the original surface area of the lakes are public. Those parts that were added when the lake level was raised are private
the existing road is public.
Minnie Lake can be accessed legally via either the creek that drains it
the fish in the lake no matter how they got there or who stocked them are public and managed under Provincial regulation.
However just because a former public road that once skirted Stoney lake is now underwater is not justification for trespass.
Likewise none of the claims that right of way trails or roads into Minnie are public were recognized. When land transfers from Crown title to private the right to travel on trails etc is extinguished. That's always been in the Land and Land title acts.
There are a lot of lakes in the area that have public access points. Unfortunately the DLCC lakes became private long before the public desire to access such lakes developed and was recognized.
the full ruling by the Court of Appeal which was endorsed by all 3 sitting judges is here:
https://www.bccourts.ca/jdb-txt/ca/21/00/2021BCCA0099.htm#_Toc65246391