I think 2022 has the potential to be the Year of the Linux Desktop due to the Steam Deck. Valve has promised that Proton will allow almost all Windows games to run on it. Guaranteed they'll also be working hard on SteamOS polish. If Windows 11 turns out to be messy, then gamers could consider Linux more attractive now.
Millions of people are using Linux via Android and Chrome OS, but I'm not sure the success of either of those has benefited the general Linux ecosystem in a meaningful way. I think the Steam Deck will be a similar situation. It's cool that it's Linux-based, but I suspect most users will just think of it as a Valve product and not really care about the internals.
In Android 12-based devices these drivers will become simply plug-in kernel modules, so all devices will run the same kernel and it will finally be able to be updated without messing with the drivers. This is in addition to less and less out-of-tree patches each year as more of them get upstreamed.
This means Android is creeping very close to mainline Linux, and already some projects like postmarketOS have devices they've done the last few tweaks needed to run it on existing phones like the Poco F1. I don't think it would have happened otherwise that most mobiles worldwide would run almost-mainline Linux, so I'd say the Android project has been a net boon for Linux enthusiasts.