I haven’t been looking, but have the 3rd parties all vanished yet?
Unfortunately they have no hope of winning with the first past the post and strategic voting. Until that changes no substantial amounts of people will throw away their votes to them
Seriously, if third parties actually cared then they would contest local elections and try to gain senate/house seats which could force democrats and republicans to work with them to pass legislation.
But when third parties only show up once every four years in the single biggest election it shows that either they’re trying to play spoiler or just doing a quick cash grab.
3rd parties are just not viable in the US system. It’s not set up for accomplishing change within a first to the post voting system.