One of the best things about a phone from the company is that it isn't one size fits all. The case in point is your phone. If you don't like the default choice, you can change it to something that makes it easier to read or something that expresses your personal style. You probably spend hours every day checking your phone, so you should really like the style you are looking at. How to change and adjust the style of the phone.
I used the OneUI 4.1 for the following steps.
Go to Settings > Display.
Scroll down and select Font size and style. On this menu page, you can choose to bold the current font, which might spice up the look of your font enough for your taste. You can also adjust the font size, too. But if you want to change the font itself, you’ll want to proceed and tap Font style.
Here, you can choose from a couple of other pre-loaded options, but for more choices, tap Download fonts. This will take you to the Galaxy Store app.
The top option, called Samsung Sans, doesn’t require you to log into the app store to install it, but other options will. Most of them are from a third-party developer and cost a small fee ($1.79 or $2.99, mostly).
If you don’t like the idea of paying for a font, you can tap the Top free option at the top of the screen. There aren’t too many to choose from, but if you’re feeling feisty, the Samsung-developed Cool Jazz is kind of fun. Otherwise, Samsung Sans is the safe, sophisticated choice.
Try before you buy for the paid options to get a better feel for them.
Tap on one of the options to get to the app store page for that font.
You can select See sample to look at all of the characters and experiment with different sizes, or tap Try it out to take it for a little test drive. A mock text chat will pop up, and you can type your own sample text to see how it looks in action.
You chose a new type. It's good to Congrats! Now what? You won't see it everywhere on your phone. All of the text in the system menus, on your home screen, and your notifications will be in a new style. The change will apply to some text in certain apps. In other places, you will see text in a default style. I was hoping to read Musk's message in Cool Jazz.
You can always go back to the default if you get tired of it. You won't have to go to the store again if you change your mind and want to use the new fonts again.