About 3 years ago I put Zorin OS on my laptop that I used for work and school. It made my computer run faster at literally zero cost. It's designed so that even your grandmother can open it and use it, and it really was that simple.
Isn't linux hard to use as a regular person?
Today, all of the office softwares like word and excel have been recreated (see: libreoffice) and are faster than their proprietary counterparts. Every few years Microsoft releases some update that changes the layout of things, and reoganizes the UI for no reason. That doesn't happen with libreoffice, and its just as good.
One caveat
I understand the need for software like Adobe Creative Cloud which do not exist for linux yet, and this article isnt an argument towards installing linux on every single computer asap. I have a windows machine I use for such operations.
My laptop is purely linux however, and I have my own Arch linux installation with everything optimized to my needs. It did take time to learn how to use alternative applications, but most of them will save a lot of time after you learn them, and are 100% benefitial in the long run. Vim as a text editor is one of the best examples of this.
How hard is it?
Realistically, it is only oging ot be as hard as you make it. You can chose which operating system you want, and with the current state of the internet you can find answers for any question you have. AI is also very helpful with debugging issues or answering your questions regarding the topic.
In all honesty, the switch is something you won't regret. It will save you time and resources in the future with little to no cost.