For me not at all. I'm old enough to research & shop for what I need rather than impulse buy. Tech wise I ~~dont~~ very rarely see any ads at all thanks to strong ad blocking & general privacy consciousness. I try to stick to open source only & fediverse is the only social media I use. For YouTube I never sign in to so I'm not affected by the algorithm & never see ads on it ever (channels I like are in a Joplin note synced between devices). Broadcast TV is recorded via HTPC & ads stripped before episodes are fed into Jellyfin.

I dont "get" influencers. Even back in the day I used to ask why celebrities always put their name to perfume/aftershave as I'd only buy what I liked the smell of regardless of the brand/name.

Yeah, I know I'm an outlier, even my mates take the piss.