Use ryzen integrated cpu graphics instead of nvidia 710 for ubuntu

[lyric pulsar]

So i have a rtx 710 graphics card which is kind of old and decrepit and i want to make graphics run on my cpu instead, im using a htmi cable plugged into my nvidia gpu so im not sure if that needs to be swapped around too

My issue is that my pc is frequently crashing and i believe it to be because of the gpu, but do correct me if im wrong
bugs i find are: cursor & screen having lots of bugged lines and out of place graphics
applications crashing upon being run
errors being logged upon booting
being stuck in a log in screen and being forced back into it upon logging back on

note that i'm new to linux distributions and i am by default a windows user!

Here are some pc parts if needed

CPU AMD Ryzen 7 5700G 3.8 GHz 8-Core Processor
CPU COOLER Thermalright Peerless Assassin 120 SE 66.17 CFM CPU cooler
MOTHERBOARD ASRock B450M-HDV R4.0 Micro ATX AM4 Motherboard
MEMORY Mushkin Redline 32 GB (2 x 16 GB) DDR4-3200 CL16 Memory
STORAGE Samsung 970 Evo Plus 1 TB M.2-2280 PCIe 3.0 X4 NVME Solid State Drive
VIDEO CARD Asus GT710-4H-SL-2GD5 GeForce GT 710 2 GB PCIe Video card
CASE Fractal Design Meshify 2 Mini MicroATX Mid Tower Case
POWER SUPPLY Corsair CX450M (2015) 450 W 80+ Bronze Certified Semi-modular ATX Power Supply

https://pcpartpicker.com/list/WHDkFg

[olive scaffold]

plug hdmi into the motherboard and disconnect the asus gpu