I got Far Cry 6 Gold for half normal price by using this price tracker website (50 instead of 100)
There is also the regular Far Cry 6 for Euro39 instead of Euro80 as well.
Like CamelCamelCamel for Amazon - I could see the PlayStation store dropped the price for a few days every few weeks - and this site lets you set a watch and it emailed me when the price dropped.
Also - Farcry4 is only 8.99 euros right now... https://psdeals.net/ie-store/game/48126/far-cry-4
There is an equivalent XBox site also that has all the varients Series X and older consoles etc.
The xbox site often shows free games as well - but often it may be free from certain countries only....
Both sites are free to use - and just gives links to and you buy from the regular Sony and Microsoft sites.
“Roll it back”
Xbdeals is very good, have been using it for a while. I normally have it set to the argentina store and buy & activate the games using an Arg VPN.