Android Go is a stripped down, but very efficient OS.
It allows the user to do more with considerably less.
First, let it be known that the utility apps that come with most any device are only there to be used until the user finds something better.
Every utility app is pretty much junk, unfortunately, and even worse- the ones with internet access can even be security hazards.
Things like a calculator that have internet capability, or that want access to your contacts, for instance.
Personally, I like cheap devices.
But I do more with my junk than most people do with $1000 devices.
You could start trouble shooting by changing your launcher.
There are tons around, with all sorts of different features.
A favorite around here is Nova.
Personally, I use KISS.
Next, I would check out the apps that Simple Mobile Tools has to offer for utility apps.
They are what I use on all of my devices.
Do not fall for junk apps like anti-virus or any security style apps- they will only bog the device down and they really won't do anything else.
Ditto for the cleaners, boosters, and other junk like that.
There is one cleaner app that does what it says and tells the truth about it- LTE Cleaner.
It also has a place on each of my devices.
A must have is a good, fast browser.
Lightning is excellent.
As far as a weather widget, I really cannot help with that because I don't use weather apps.
They basically are a security nightmare.
Instead, I use a website called emergencyemail.org, and after I get onto the weather page for my area I bookmark that into my browser.
In fact, I now have a browser where I made that the homepage- so that browser is now a defacto weather app.
No widget, but I can put the icon on the home display, tap it, and have weather info in seconds.
Notice how I am not including any Google apps?
There are reasons for that.
I actually have deGoogled my latest device.
Let me know if anything like that is appealing.
Be sure to not put any apps onto the SD card.
This can bring a myriad of problems.
Only put apps in the internal memory.
So here are a few links for you to look at, for the apps that I mentioned.
Tell us if any helped, what you liked, what you didn't, and why.
https://nova-launcher.en.uptodown.com/android
https://f-droid.org/en/packages/fr.neamar.kiss/
https://www.simplemobiletools.com/
(This is the webpage describing the Simple Mobile Tools collection of apps. Although you can download these from multiple sources, it is adviseable to do so from F-Droid.)
https://f-droid.org/
https://f-droid.org/en/packages/acr.browser.lightning/
https://f-droid.org/en/packages/theredspy15.ltecleanerfoss/