True but the Euro/US dollar didn't devalue against the global currency market by 45%.
Imported goods have been adjusted already. Regular unleaded petrol is around 170 yen per litre around Tokyo.
Perhaps only subjectively, depending on where you go.
Energy is typically the backbone of any modern country, and the price level being fixed by OPEC allows several comparisons that are accurate.
Accommodation and food prices seemed to be roughly around the same as before, but I did note some bottled soft drinks seemed to come in smaller sizes than before (450ml vs 500ml).
Checking my notes again just now, I did see the Nest Mini 2nd Gen for ¥2980, but that seems to be part of a Christmas promotion going on, so not a useful data point.