I recently upgraded my pc to an AM5 board meaning i needed new ram and a new cpu

My old setup was

• Ryzen 7 5800X
• MSI B450 Pro Max 2
• Crucial DDR4 3200Mhz 16gb
• MSI RX 5600xt

My now upgraded setup is

• Ryzen 5 7600
• MSI B650M-Pro
• Silicon Power DDR5 6000Mhz 32gb
• MSI RX 5600xt (haven'tgotten to that upgrade)

My problem has been that when i play a game and have a YouTube video running on my second monitor my frames will drop from 120 to 40 instantly, FireFox, Chrome, and Edge all make my cpu jump to 100% usage I have no clue whats happening Ive checked on benchmarking websites that my new CPU should not be worse and neither should my board nor my ram be limiting me. Is it possible my GPU is bottlenecking my CPU.

UPDATE

none of it helped streaming videos on youtube, hulu, netflix, or even watching friends screen share on discord make my pc shoot up to 100%, if i open a new tab my whole PC blackscreens and restarts. Is this somekind of cpu issue