We had this in the 60s with variable wings (Lotus, I think, had a system that flattened the wing for high speed on the straights, when they braked, the wing flipped up to increase the downforce in the corner), 80s with Venturis and skirts with active fans to increase downforce. There have also been various other innovations that provided too much of an advantage or lowered the excitement, because they could no longer overtake.
Then there were the constant motor changes (1.5L, 3L, 1.5L turbo etc.) and banning different tyre manufacturers. The last was always teh one that got me the most.
Different tyres have really different properties and cars are designed around them. When the manufacturers were thrown out and only one tyre type was allowed, you saw which teams had already used them, because all the other teams were shredding their tyres mid-race.
I used to ride motorbikes and I loved Bridgestones, because they matched my riding style. Dunlops and Avons had a lot more slip and you could really slide the tail out, but were “loose”. Michelins, for example, gripped much longer, so you could hold a higher corner speed, but once you reached the limit, they suddenly gave way in a big, uncontrollable manner that could be dangerous. The Bridgestones were better, they progressively slid, I could slide the rear tyre through a corner, but I could “feel” it and hold it at the optimal point.