In addition to the well informed comments above I can add that I definitely recognised a number of throws transitioning into locks from Judo, some very elegant, as always, wrist lock throws from Aikido along with a good variety of ground work from both Brazilian and Japanese Jujitsu and more Judo. Some of the punches, elbows and open handed striking looked to be from more modern eclectic systems, targeting vulnerable areas (I'm not so familiar with these). A lot of the kicks to the legs were very similar to the street fighting form of Kick/Thai boxing that I studied quite a few years ago where we had it drummed into us that any kick above thigh level is likely to end up with you on your back after getting your leg caught.
I may have missed some techniques, misinterpreted others, and attributed some to a particular system where they are common amongst a number of systems.
My background was with Judo, mostly Japanese Jujitsu (a little Brazilian), kick and Thai boxing - with direction to what is practical in a street fight (though we did study the full plethora of techniques), a lesser amount of Aikido, Western boxing and a few years of eclectic techniques involving stick and knife fighting and the most useful techniques borrowed from numerous styles. Sadly, these days, my back and neck are so damaged from the stresses I put them through in my youth that my only contact with martial arts and combat sports is through John Wick, Jason Bourne etc!!!