You're a freelancer so you're self employed. Your company name is your name. More on reddit.com

What is the cost for business 365 vs the personal home 365 that I already have? How much to upgrade from home to business? I need the best prices possible. I am interested in the Business 365 and can you explain the difference and benefits of having… More on learn.microsoft.com

It's a personal choice. An aversion to subscriptions is often more of an issue of principles than a practical one, in my experience. Subscriptions provide always up to date software, and new features at regular intervals. There are often other perks, such as (in the case of MS365 Family) the abilty to share your subscription with up to 5 other family members, each of whom get 1TB of OneDrive storage. The cloud storage alone is worth the entire price of the subscription to some people. Perpetual licenses allow you to use a product until it is no longer supported, or no longer works on whatever future OS version you use. If you are happy with the feature set and see no reason to upgrade frequently, then you will probably net out ahead in terms of total cost. But if you tend to upgrade every 2-3 years as new versions are released, you will end up paying as much or more in licensing fees as you would have paid for the subscription. There are only two software subscriptions I religously pay for: MS365 and Creative Cloud, because I require these products for my business and there are no real substitutes (for me). But if LibreOffice floats your boat, enjoy it. Or, if you are good with storing your files in OneDrive, then you can also use the Office web apps for free with a consumer Microsoft account. More on reddit.com

M365 Family doesn’t have the same features as M365 Business basic or standard. More on reddit.com