ゐ and ゑ (these days pronounced the same as Japanese i and e) are known by all native Japanese speakers, were used historically, and actually still see some use in certain scenarios (like signs, or names of things). The other ones were never actually used much afaik and only recently were introduced to Unicode at all, and are probably unknown to most Japanese people except those interested in this kind of thing.
ゐ and ゑ (these days pronounced the same as Japanese i and e) are known by all native Japanese speakers, were used historically, and actually still see some use in certain scenarios (like signs, or names of things). The other ones were never actually used much afaik and only recently were introduced to Unicode at all, and are probably unknown to most Japanese people except those interested in this kind of thing.