Yes and no. The caps from that late 80s-mid 90s time period where we see so many failures nowadays were mostly fine back in the day when the machines were current. A couple instances of bad caps started showing up in the later half of the 90s and then people began to catch on to the issue in the early 2000s, which has only gotten worse until today where those era of caps have a 100% failure rate. And still, it's only certain types of electrolytic caps. The Surface-Mount (SMD) type are the infamous ones that leak on mac logic boards starting with the SE/30 and rev b Mac Iis. Plenty of through hole caps from this time fail just as often, such as the ones on Mac Classic analog boards, anything with ELNA-brand caps (IIsi PSU, PowerBook 1xx PSU, a bunch of Toshiba laptops, etc) is experiencing devastating leaks, and other brands go too. Not 100% of the brands are bad from this time though, but due to how many there are it's good to replace anyway, they're old.
Early 2000s caps are separate though. The story goes that someone stole a capacitor formula from a company and through a game of recipe telephone it got mis-copied around, causing probably millions of badly formulated caps to end up in power supplies, motherboards, graphics cards, and more. They'd work at first but bulge out the top and start leaking a dry crusty buildup from their top vents and stop working. This happened when systems with them were new and current, and things didn't fully smooth out until the end of the 2000s. The main difference there is that those plague caps weren't as damaging to things around them because they didn't leak liquid electrolyte from the bottoms (usually), and it's easy to see if they're bad. (If the top vents are bulging or have a brown or orange or black residue on them, they're bad).
So yeah, two different situations.