tldr; I have a Quest 1, Bait! is free but you pay to get the extra lakes (which I've done), I don't want ads added to content I've paid for. If ads will be in the games, that should only happen in "free" games or be made clear before purchase.
Background: We bought a Quest 1 1.5 years ago, and it's been great. No base stations means we can bring it anywhere (friend's house, office, gymnasium at the community centre), and combined with the price really lowered the bar to entry. A couple of my friends have Quest 1s, and a couple more now have Quest 2s. Online co-op works smoothly, and the new Quest 2 wireless streaming from a PC works even better than the workaround using Virtual Desktop, which gives you full use of your Rift and Steam VR library.
About the recent stuff: I have had a FB account since early days, right after they opened it to non-college accounts. I'd moved to New Zealand with my wife and it was the easiest way to keep in touch with my friends at that time (FB is really a broadcast model, whereas email and phone are used by most people as point-to-point.) I wasn't keen to be linked to my FB account, mostly because FB could cancel my account at any time and lock me out of a year's worth of game purchases. However from that perspective I'm not sure it's much different from Steam, Origin, Epic etc. I bought Star Wars Squadrons on a Steam sale and it required me to create an EA Origins account and have Origin installed to play it. If Steam or EA ban my account I lose access to all my purchases. To my mind this is the biggest downside to the current gatekeeper model (and the biggest reason I like GOG's DRM-free model that lets me download my games after purchase and install offline if I want.)
About the ads specifically: I own Bait!, it's free but only comes with one lake I think. Sort of like the old Shareware model where you get it free and pay to unlock the rest of the game. I've purchased the rest of the lakes, more than a year ago. If they had sold it as "buy the rest of the lakes, with ads" then I could make an informed purchase knowing what I'm getting. But adding ads after the fact is not only upsetting but also potentially illegal. Updates that degrade a product in some way aren't illegal on their own (it's a gray area depending on several factors), and contract law isn't my area, but with those caveats I'm pretty sure that a judge would agree that altering a product after purchase to generate additional revenue for the seller without the buyer's consent is not legal. Facebook's legal team should have instructed them to put the ads into a new game, either a free-to-play-with-ads type or a purchased one with a clear disclaimer that it includes ads and how they impact the gameplay. To be clear, I think there are a number of easy ways to include ads in games (movie product placement is usually seamless, games could have done this ages ago). But the way these bumble-f**ks have gone about it is guaranteed to generate both moral and legal pushback.