Wild behaviour belongs to the game
A Wild can substitute for certain symbols, but exclusions and multipliers are title-specific. Expanding, moving, stacked and held Wilds are different mechanics. A Golden Card becoming a Golden Joker is also a transformation rule, not evidence that all gold symbols behave the same way.
For the topic overview, see 100 JILI slot game profiles.
Read the Scatter trigger literally
The required symbol count, reel restrictions and awarded spins can vary. Three Scatter types in 3 Super Ace, for example, should not be collapsed into one generic bonus rule. Check retriggers separately from the first entry.
Why feature names are not enough
Wilds appear in 40 JILI feature descriptions and free games in 49, but the same word can mean different rules in different titles. Read the paytable for three things: which symbols a Wild cannot replace, how many Scatters trigger the bonus, and whether the feature can retrigger.