I wanna talk a bit about Gholdengo and the hazard problem, not in direct response to anything, mostly just as a ramble. I feel a lot of players miss the forest for the trees when speaking about Gholdengo's impact on the hazard metagame.
The basics
To start with, let's get the obvious out of the way. With Good as Gold + Ghost typing, Gholdengo is the best removal blocker ever, no questions asked. It helps that it has great typing, very useable bulk and of course Recover. Being able to completely wall the main otherwise-Defogger Corviknight is obviously huge; it makes Defog Corv a liability in many matchups or, at the very least, hugely inconsistent.
Why Good as Gold isn't really a problem for the hazard meta
But the thing is, it's really just Defog Corv. If you look at everything else that learns Defog and would be/is viable in OU assuming Gholdengo was banned - and I will be using a generous definition of viable for this - you've got Mandibuzz, Talonflame maybe?, Galarian Weezing. The former is already decent on certain teams, particularly that popular Stresh squad, but it doesn't Defog and honestly wouldn't be great even if it could - it needs that IDef + Foul Play combo to be an effective physical check on that team. The latter two are just straight up bad, but they already beat Gholdengo anyway; Talonflame with STAB Fire moves and Galarian Weezing just ignoring Good as Gold altogether. The reality of the Defog situation is just that distribution is incredibly low and is limited to Pokemon that are not good in OU other than Corviknight.
Rapid Spin isn't much better. Pretty much everything that learns it already has a strong Gholdengo matchup save for things that would just not be remotely useable regardless like Forretress. People often tout that Great Tusk is the only removal that gets used because it's the only remover that threatens Gholdengo adequately, but that's simply not true; Iron Treads, Quaquaval, Cyclizar, and even Brambleghast can appropriately threaten a Gholdengo. The issue isn't that those guys are bad hazard removers, it's just that they're bad Pokemon.
If you contrast this to the options available for actually laying hazards, that's when the problem becomes pretty clear. Between immortal Ground-type setters in Gliscor and Ting-Lu, the offensively inclined Glimmora, Sandy Shocks and Hisuian Samurott, the classic "I can spike on a switch"-ers in Greninja, Meowscarada and Ogerpon, and backup plans should everything get banned in Garchomp, Clodsire, Gastrodon- those are all ok-to-great Pokemon that easily lay Spikes, and multiple layers at that. You're really not left wanting for rockers either, considering Clefable, Great Tusk, Empoleon, Ting-Lu again, Garganacl, Heatran etc. can all do that just fine. And of course, we finally have a consistent Sticky Web setter with Ribombee too.
The bottom line
If you ban Gholdengo, the hazard meta realistically will not change much. Corviknight is a good Pokemon, but it's a highly abusable one and not something that will ever peak super high in usage. There are too many strong hazard options for it to truly keep up, and there's not much else in the dex to handle the hazard issue at all. Spinning in theory becomes slightly easier, but the Ghosts this gen are potent enough that if your opponent doesn't want you to spin, you won't be spinning - see Dragapult, Ceruledge, Skeledirge, Sinistcha, and niche options like Gengar, Basculegion, and just Tera Ghost with the Spikers themselves - esp Ting-Lu.
I do not believe there is much to be done here without extreme measures that would probably not be allowed under tiering policy (e.g. banning Spikes). In DLC2, I believe options to improve the hazard metagame should be explored, especially if we don't get extra Defog/Rapid Spin options. Right now it does not feel like a problem that can be solved within an acceptable timeframe, though I do think banning Gliscor would be a step in the right direction for alleviating at least a little bit of pressure. Until then, I think we kind of have to accept the Boots spam stuff - not because banning Gholdengo would be a "mistake" or whatever, just because I don't think it realistically fixes the problem at all.