We know that cops can break encryption on your phone

Depends on the phone. Cops have not managed to break the latest iPhone encryption yet, and I believe that some of the more recent Android is also currently unbroken. Regardless - if you don’t use a smartphone for doing questionable shit, there’s nothing to break. This is why burner handsets exist.

get everything from your social media account

Not if you don’t have one. And even if you do–a smart assassin isn’t going to post anything that’s remotely close to linking your real life to committing a murder.

track your payment methods for your ebike get away

Not if you steal it. Which is reportedly what happened. An even easier trick is to buy a used bicycle with cash off at your destination; you’ve already spent $1000 on a pistol with a threaded barrel, and about $2000 on the printer to print a silencer (because you sure as fuck aren’t buying a Dead Air Sandman and getting on an ATF list, right?, the printed silencer won’t last long, but it doesn’t have to), so what’s another $500 for a used bike, and $200 for a good lock and chain so that it doesn’t get ripped off while you’re whacking a CEO?

Pro-tip: .45ACP is always subsonic, although a silencer will never make a gunshot silent by any stretch of the imagination. Best case scenario for anything other than .22LR is that it’s going to be quiet enough that you won’t destroy your hearing if you pop off a shot in a small room.

to the CVS you bought your prepaid card with cash at

…Which is 500 miles from where you live.

they can use gait identification to ID you

Easy to fool just by putting a rock in a shoe. Also an exceptionally questionable (e.g. psuedoscience) method of identification, much like bite analysis.

use thermal vision drones to find you in some field.

First, they have to know who and where you are in order to even be searching for you in that field. Second, thermal is not nearly as useful as you’d think. A piece of carboard, a mylar blanket, even a sheet of glass will entirely block it. It’s not even going to be able to see through moderately heavy brush or tree cover.