Holy shit this "Nintendo is not consumer friendly" rhetoric...
I'm all for calling out companies, but only when it is warranted. In this case, it is partially warranted.
1440p isn't a standard TV resolution, and the Nintendo Switch and Switch 2 devices are primarily aimed at TV users. The person you're responding to was wrong for using that as part of their argument against Nintendo.
However, I said it is "partially warranted" that Nintendo was called out because of the lack of VRR support in docked mode. Nintendo designed the console with USB-C in mind, and only USB-C in mind. There is no VRR support in docked mode because the Switch 2 outputs video to the dock via USB-C using DisplayPort Alternate Mode, and the dock is then converting that signal to HDMI. The problem is that DisplayPort Adaptive Sync and HDMI VRR are two completely separate protocols, and there is no conversion adaptor that properly handles the conversion of the former to the latter.
To support VRR, Nintendo would have needed to separate USB-C charging from video output, and implemented HDMI at a SoC level so that the base of the Switch 2 would have both USB-C input (for charging) and HDMI input (for video). The dock could then have been modified to support both the USB-C connector and the HDMI connector. The reason this frustration towards Nintendo is warranted is because those changes would have added less than $5 to the total cost of the Nintendo Switch 2, and the bulk of that <$5 cost is including the amortized estimates for HDMI certification and engineering costs. Additionally, if Nintendo had designed the Switch 2 this way from the beginning they would have saved a couple of bucks per device by not needing the DisplayPort to HDMI conversion hardware, meaning that <$5 cost increase would actually have been closer to a wash.
Nintendo absolutely could have implemented native HDMI 2.1 output on the Switch 2 without much difficulty compared to the overall complexity of designing a modern console. Adding HDMI 2.1 video directly from the SoC is basic board design. The dedicated HDMI connector along with some board routing and shielding, are modest design changes. The manufacturing impact per unit would be negligible beyond a small increase in bill of materials, and the main burden would be additional validation and certification for HDMI 2.1 features such as VRR and HDR.
Microsoft and Sony have integrated native HDMI 2.1 outputs in their consoles for years, and even low-cost streaming boxes do this. If Nintendo had made VRR in docked mode a priority, it could have been incorporated cleanly with perhaps a few extra months of design and compliance work, but they chose not to invest in this capability even though VRR has been an increasingly popular technology over the past half-decade, which they indirectly admit since handheld mode supports VRR.