I installed LM because its the most simple and "just works" distro but for the life of me I cant find the setting to adjust the mouse scroll speed? My laptop touch pad if i just barely two finger scroll it moves the whole page. Surely such a simple feature exists...right? Well I googled it and found a dozen or so answers, all completely different, all involving random commands or terminal tweaks...Is there no simple way to do this still!?

There wasn't a lot of updated info on this so I gathered a bit did some testing and have some easy clear instructions.

Basically out of the box mouse scrolling is pretty slow. In others you can just select from a list and click more lines for faster. Not here with Mint. Especially for new users it's confusing. So this isn't an exact step by step but you should get enough to work through it.

For Logitech Mice check Solaar, not scrolling but does have custom options key remapping etc. I swap side buttons 4, 5. So the Back is the forward most button right at my thumb tip since it's most common/frequent. Then the forward have to bend back a bit more

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Tips

To check mouse button identification for customization etc

--From Terminal use xev | grep button

--Ctrl-C to exit it

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For Linux Mint 21.1 + and probably many more

1. Install Imwheel pkg from package manager or terminal etc

2. Go to Home folder(should also see Pictures and Music) and create New File then save as .imwheelrc

Copy and past this for ALL (change the 4 at end for speed--- + for faster or - for slower) 3-5 is pretty common

".*"

None, Up, Button4, 4

None, Down, Button5, 4

Control_L, Up, Control_L|Button4

Control_L, Down, Control_L|Button5

Shift_L, Up, Shift_L|Button4

Shift_L, Down, Shift_L|Button5

=========For app specific add this modifying the 4 at end up or down for each app as needed

"^firefox$"

None, Up, Button4, 4

None, Down, Button5, 4

Shift_L, Up, Shift_L|Button4, 4

Shift_L, Down, Shift_L|Button5, 4

Control_L, Up, Control_L|Button4

Control_L, Down, Control_L|Button5

"^chromium$"

None, Up, Button4, 4

None, Down, Button5, 4

Shift_L, Up, Shift_L|Button4, 4

Shift_L, Down, Shift_L|Button5, 4

Control_L, Up, Control_L|Button4

Control_L, Down, Control_L|Button5

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3. Then save

Use Terminal "killall imwheel" to stop any current process then to start with changes

run in Terminal and type: imwheel

BUT

Then imwheel disables back/forward side buttons so need to isolate imwheel to only apply to the up/down so use this to start it. Modifications need it to be stopped and restarted or logout

--imwheel -b "4 5"

4. To make it start at boot in Mint go to menu then search for Startup Apps click plus at bottom

In the popup type an app name and in the command box put: imwheel -b "4 5"

Then description like Faster scrolling or something, save and logout/reboot to verify

You should now have auto start faster scrolling with working back/forward buttons. Along with cranking up the mouse pointer speed to almost fastest it's much easier to use now.

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Another slightly easier and less text file changing is

Install Mousewheel

Mouse Wheel GUI scroll app which uses Imwheel and does all of the above
https://github.com/kelebek333/mousewheel

sudo add-apt-repository ppa:kelebek333/tools
sudo apt update
sudo apt install mousewheel
Uses IMWheel so likely need to add line at startup apps -imwheel -b "4 5" as described below otherwise it kills side back/forward buttons. 

You now have a mousewheel app in menu
If it works and you don't need mouse side buttons then great 

For working side buttions go to Startup Apps
Find imwheel in list click on it to highlight then click on pencil icon in bottom of window. In the command box add so it says imwheel -b "4 5" 
Save and close, you'll wanna logout and in to make sure it takes effect. Now you get side buttons back

Its so fucking slow! I've looked through the settings but nothing. I only installed mint last night so I'm still very new, sorry.