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One way is to donate to devs who are working on some specific features in the Linux kernel. The two I remember are Hector Martin who lead the Asahi Linux project and Kent Overstreet who is the main dev behind bcachefs, a new CoW FS.
But I guess this only works if there is some dev already working on a feature and is accepting donations. I wish we had community linux project or something similar which was funded by donations and hired kernel devs to work on things the community voted on.
Id say just recommend Photon. It works well on both mobile and desktop. I love voyager but two very different uis is going to confuse new users.