Jurassic1 and Starship Troopers better CG than Black Panther

Dunno about Starship troopers, but I would say JP fx are better because it limited how much CGI it used, a lot of the dinosaurs were actually animatronics (which look way more realistic) and the CGI was usually never on camera for too long, essentially tricking the eye into thinking it was looking at actual dinosaurs rather than computer rendered effects. That's why Jurassic World looked worse  IMO, less animatronics (not sure there were any) and more obvious CGI work. I would also extend this to the Alien franchise, the original was just some guy in a suit and it looks way better than the CGI aliens in the later movies.

It's because of the DID. Dinosaur Input Device.
When it became clear cgi was going to be used for Jurassic Park instead of stop motion, Dennis Muren persuaded Spielberg that the stop motion animators hired for the film (lead by Phil Tippett) be kept as the lead animators. So, they constructed a device that let the stop motion animators do the animation with a mechanism that fed the motion into the computer.
If not for that, the animation would have aged badly because the CGI animators were trained in cartoon animation so they did not understand realistic motion the way the stop motion animators did.
That is why the CGI on Jurassic Park moves so realistically (except for the final scene which was done by the CGI animators), why the cgi on Dragonheart was so bad (Tippet and co. designed the dragon but did not animate the film), and why the CGI is so good on Starship Troopers-it (and I think the Lost World) were the last to use the DID.

Since then CGI animators have come from the squash and stretch world of 2d animation. Stop motion was more specialized.

I have not seen Black Panther, Ready Player One,and Alita Battle Angel but with effects today that sounds pretty believable.