Being "trivial to comply with" is completely disjunct and not at all an argument against "this type of law is fundamentally at odds with the liberty and self-determination that open source projects require and should protect." It's a shot across the bow to open-source, it's literally the government telling you what code your computer has to run. It is gesturing in the direction of existential threat for Free software and I am not exaggerating. It's purposefully "trivial" so you don't notice or protest too much that this is the first time the State is forcing you to include something purely of their own disturbed ideation in your creative work.
Free software is already mandated to do a lot of things, like not defraud the user. If you make a bitcoin wallet that sends 5% of your money to the developer without asking I'm pretty sure you'll be prosecuted, so the government is compelling you to ask the user for consent to do that.
When you make food you're compelled to write the ingredients. We tolerate these because they are obvious and trivial, but pedantically, food labelling laws also violate the first amendment.