The perceived quality of Halo and Gears has gone down drastically over the years, though. It hurts me to say it, but there's going to be an increased revisionist history of Halo never having been at the same quality as Nintendo or Sony's best exclusive titles; even though it absolutely was at one point. I'd even argue the same with Gears, with Gears 3 being one of the most standout games I've ever played.
However, as someone who is a fan of those franchises, I think that's hard to argue for their current outings. And that's why I kind of can't defend something like putting modern Halo, something like Halo 5, against the merits of something like Mario Odyssey. I don't even like Odyssey that much, but there's a leagues and bounds difference in how disappointing and soulless Halo 5 felt to me. That's just me personally though, if you want to do it you can, but I think it's fair to say that, @ the bolded, that's built off prior history of those franchises, not what state they're in now. As franchises get more and more washed up and what people used to love about those games goes away, more people become disillusioned, and people either wonder if those games were ever that great to begin with and/or just don't give acclaim to those franchises anymore in general. You can't live off past critical acclaim forever - that's how you become Sonic.
Except Forza. Horizon FUCKS.
Considering how they generalized all these franchises and not specific games makes me believe they are talking about those franchises, which is why I said it's not true.
I don't think you will find many people including myself who consider Halo 5 to be up there with the other great Halo games, but I still enjoyed the multiplayer a lot. MCC is also one of the greatest collection of games to release. 343 has done a fantastic job supporting it since it's revitalization in 2018. I think gamers are just as excited for Halo Infinite than any of the great Nintendo and Sony games coming out.
As far as Gears goes, I still love that franchise. I play Gears 5 weekly, and I'm excited for the next iteration. Hopefully after Gears 6 they move on to something new.
Forza Horizon 2/3/4 were some of the best games released last gen, and with Horizon 5 rumored to release this year, there will be a lot of hype around it.