FWIW, Ventura runs OK on my 2017 Core m3 MacBook. Your 2020 i3 MacBook Air is 40%+ faster than my m3.
Geekbench 5:
790/1600 - m3-7Y32
1100/2380 - i3-1000NG4
Mind you, I have 16 GB RAM, but 8 GB is fine if you're not heavily multitasking or loading a bazillion browser tabs. I have Monterey on a 2014 Mac mini with 8 GB + SSD and it is fine for light to moderate business productivity.
Your 2018 i3 Mac mini is roughly twice as fast as my m3 MacBook.