I personally never found a spreadsheet approach that worked for me. I use YNAB, really like how future focused it is. With the new higher price point they chose this year, it’s a much harder recommendation.
Good Budget is a similar system, free if you only have 10 categories. There was a developer creating a free clone of YNAB 4 as a web app (instead of the changes put in YNAB now) but development stopped quite awhile ago, so not sure if it works or not. The site is still up. Can’t remember the name offhand.
The original YNAB was an Excel template, though. You might see if that’s still floating around.