Set custom DNS servers in Google Chrome?

This is the correct answer, go to google chrome settings > Advanced > Security

search DNS and enter with customized: https://1.1.1.1/dns-query

you will get DNS over https

check https://1.1.1.1/help

The 1.1.1.1 DNS Server is a partnership between Cloudflare and APNIC.

Setting up 1.1.1.1 on Windows PC takes two minutes and requires no technical skill or special software. Even if you’re a computer novice

• Click on the Start menu, then click on Control Panel.
• Click on Network and Internet.
• Click on Change Adapter Settings.
• Right click on the Wi-Fi network you are connected to, then click Properties.
• Select Internet Protocol Version 4 (or Version 6 if desired).
• Click Properties.
• Write down any existing DNS server entries for future reference.
• Click Use The Following DNS Server Addresses.
• Replace those addresses with the 1.1.1.1 DNS addresses:
• For IPv4: (primary) 1.1.1.1 and (secondary) 1.0.0.1
• For IPv6: (primary) 2606:4700:4700::1111 and (secondary) 2606:4700:4700::1001
• Click OK, then Close.
• Restart your browser.

DNS Overrider seems to be an extension that might do what you want, but reading the reviews and the details of it, I don't get a positive feeling towards it. However to set up a custom DNS server, you don't need to do it on your browser. You can set it on your operating system, and maybe that's why Google has decided to remove it from Chrome's settings.

Assuming you're on a Windows machine, you'll need to do this:

Control Panel > Network and Internet > Network and Sharing Center

Then from the left panel select "Change adapter settings".

A new window will open, listing you all the network connections that you have (i.e. Ethernet, WiFi, etc.).

Select the one you're using to connect to the Internet, and right click on it and select "Properties".

In the list from the opened dialog, scroll down to select either of these options depending on what IP version you're using (typically IP v.4):

Internet Protocol Version 6 (TCP/IPv6)

(or)

Internet Protocol Version 4 (TCP/IPv4)

Without unchecking the item, click on "Properties" button, and manipulate the DNS Server from the second section in this dialog:

And then confirm and save all the changes you've applied.

I always keep my DNS servers custom, which somewhat optimizing several factors. The addresses used in the screenshot are Open DNS addresses.