A lot of us just use a well-reviewed dongle (with physical volume control), it's really just plug and play, don't worry too much about extra drivers/et cetera, more info here: https://www.reddit.com/r/headphones/comments/121yeg3/my_headphones_buzz_more_or_less_depending_on/jdoixm2/

Dongles with physical volume control (helps with reducing/remove static/buzzing/hissing/etc. noise, especially when gaming), more info here: https://www.reddit.com/r/HeadphoneAdvice/comments/11my6hp/under_150_dac_for_dt_770_pro_80/jbklpr8/

For the powered speakers, you might want an actual thing for that. As dongles (without volume control) and so on will often make the buzzing/static/hissing/etc. noises way louder.

Btw, most motherboards even with the S/PDIF, or like 5.1 options, and so on can have the buzzing/etc. real loud when you're gaming at high framerates/resolution. So the dongle with physical volume control can fix that. For the coil whine, see one of my posts nested within those threads but generally you just undervolt or get Noctua coolers/fans.

The motherboards will pretty much be with Realtek ALC897/ALC1200/etc. even if it's like an expensive one, so make sure you look at the specifications and the I/O pictures properly for your desired outputs/inputs and so on.

So definitely make sure you can reduce/remove that random background buzzing noise with the external audio devices. Some amps/DACs/etc. like say from iFi will often still have the hissing or sensitivity. So just do some research and avoid ones where people complained about those static noises. Especially when idle or with not sounds playing, the static noise can get really irritating.

PC gaming with budget IEMs and headphones: https://www.reddit.com/r/HeadphoneAdvice/comments/11vxaed/gaming_headphones_for_competitive_fps_on_pc/jcvjg2s/

IEMs/TWS earbuds and headphones with PC gaming, squig.link, AutoEQ, parametric EQ: https://www.reddit.com/r/HeadphoneAdvice/comments/11n9l4u/fiio_fh3_for_tarkov/jbm9db1/

With undervolting the GPU/CPU/etc. for less noise pollution, I actually also have a comment (like here: https://www.reddit.com/r/HeadphoneAdvice/comments/11gymgg/wired_headphones_that_block_out_noise_well/jaqyzxd/ and https://www.reddit.com/r/headphones/comments/11kp54t/best_noise_canceling_something_that_would_block/jb8lws7/) about that too, lol. Sorry the excessive links, smh, lmao.

Open back headphones and solutions to PC noises: https://www.reddit.com/r/headphones/comments/11dh2v9/is_there_anything_i_can_do_stop_hearing_my_own/ja8mltw/ and https://www.reddit.com/r/HeadphoneAdvice/comments/xpa9zd/pc_noise_with_open_back_headphones/iq2znjn/

Basically search up Noctua fans. Specifically the Noctua NF-A12x25 PWM fans.

These days there's the Thermaltake ToughFan 12, Phanteks T30-120, etc. that are a bit cheaper/better/etc. compared to Noctua. The Arctic P12 PWM PST (5 Pack) is still the best value, just be aware of the annoying resonance range, it's like ~1000RPM.

How to maybe soundproof your room for better noise reduction/isolation: https://www.reddit.com/r/headphones/comments/10epr17/struggling_to_enjoy_my_headphones_in_noisy/j4t4qaw/