This is impressive, and I'm glad people are working to preserve software freedom, but I'd rather just support the alternatives.
Why give them the perceived install base, and profit? Why not get a steam deck or one of the many other handhelds that you have - day 0 as a feature - root access on?
You can still like all that and want to gain full control of the device you own.
Nintendo also has the somewhat unique position of being the only one providing high-quality games in a variety of categories. If you want a couch racing game, you're playing nintendo. If you want a 3D platformer, you're playing nintendo. If you want a couch party games, you're playing nintendo. In fact if you want couch co-op at all you're playing nintendo, pretty much everyone else gave it up because you lose money.
There are a number of great studios which happen to have financial ties to a given publisher. If you like these studios you have no choice but to indirectly give money to the publisher in question.
One obvious example for Nintendo is Monolith Software.