Most modern electronics things aren't worth the effort of scavenging parts from, and I'm a die-hard component recycler. I used to keep a load of old server and PC boards for parts but only ever took the occasional capacitor, inductor, connector or pried off a chip heatsink. And those multilayer boards can be a real pain to desolder things from even with a hot air workstation.
Most components won't even be marked, and getting them off without damage is difficult.
If you are determined, a hot air gun (paint stripper type) on the underside of the board can melt the solder, followed by a strong tap over a tray to catch all the bits that fly off. Don't do it indoors though, and don't breath the fumes as the PCB starts to scorch!!! (I haven't done that trick for years mostly because I value my lungs and the environment).
One thing this old stuff is useful for, for a beginner, is soldering/desoldering practice
Some other kit, especially older kit, is useful for scavenging from. Hifi and radio equipment can have some good stuff in, and I often get mains transformers or switching power supplies that are on their own little board from things. Relays, PCB terminal blocks, lots of good stuff to be had depending on your interests.
Old PC cases are great for wires, with pin header connectors on one and often switches or LEDs on the other. I have a bag of those and pulled one out a few weeks back with a switch on and plugged it straight into my Pi as a power off/on switch
Only the other week, our security alarm stopped working. Turned out a smoothing capacitor had died short-circuit, and the mains transformer had slowly melted itself from the overload until it shorted too and blew the fuse. In my salvage box, I actually had the very same transformer taken years ago, and luckily even found a suitable (good) capacitor. Yay for salvage!