Even some Progressive models do not do what some campers want. If that is too complicated, then all life is too complicated. Nobody can make an informed recommendation until the appropriate anomaly is first defined. Some want a magic box - do not first learn what is required.
Four typical anomalies were defined. Honest products explicity state protection from each. Many items, call surge protectors, do not. Some were even recommended here.
Layman simple to first define anomalies. Then select a product that actually claims to protect from each anomaly. Many protectors do not.
Some recommendation did not bother to define what the product protects from. What it must do. Or why it is necessary. Those recommendation made everything complex. What works was defined. Why those disingenuous recommendations were bogus also had to be explained.
Recommendations that do not say why are best challenged as if bogus. Informed layman do that routinely in everything in life. If it does not also say why - with numbers, then it is probably a lie - maybe a scam.
First an anomaly is defined. Then an item that defines protection (with numbers) is selected. That layman simple.