I have been a Linux user since its appearance in the early 90's. I saw it go from a distribution on about twenty diskettes of 1.44 MB to a distribution that has nothing to envy to the two commercial alternatives. I have been using it exclusively for a good decade, both for the server of this site, as a desktop computer, and as an embedded system. I feel comfortable using it, setting it up, troubleshooting it. I do without recent machines too: my desktop computer is an I7+16Gb of memory and my laptop, I5+ 16GB. Both date from 2011. Both work wonderfully and meet my needs.
Installing and using Linux is now easy on most machines. Only some GPU drivers can cause problems. For example, my computer runs Ubuntu. It has a graphical interface, Gnome, where my applications appear in windows. I use software that often has existed for decades such as: LibreOffice as an office suite, GIMP for creating and editing images, Inkscape for vector graphics. For other needs, I have many choices: there are thousands of applications available either directly in Ubuntu, or on Github or other sites indexing Free projects. I have a scanner, a printer, a digitizer, a MIDI keyboard, and everything works. If I wanted to, I could substitute Gnome for KDE as my desktop, as it can be made to look identical to Windows.
Linux is Free software. It is the result of collaboration between thousands of volunteers. Its source code is public. It is free, as in at no cost, and accessible. There are many self-help forums on the web; one is rarely stuck for long. Tutorials abound in both video and written format and in a large number of languages. The learning curve for switching to Linux is greatly reduced by the inclusion of a graphical interface; a desktop similar to commercial options,
Linux distributions pay special attention to security. Their default configuration, at installation time, is less permissive than commercial options. And, like everything in Linux, it is possible to manage everything yourself through configuration files. Note that the Internet exists mainly thanks to Linux; it is the most widespread OS of its infrastructure.
In my context, I do not see any advantage in using an OS over which I have only the control that is granted by the publisher and under the conditions of the license, which I must repay periodically. I'm not a Gamer. The only "games" I "play" are MicroSoft Flight Simulator 2000 and Real Flight. Both work wonderfully on Windows 7 on a Core2 Duo 4GB laptop from the 2000s. I never connect it to the internet.
If you are curious, know that it is possible to try most distributions either by creating a Live Disk on a USB key or a DVD, for example, and by booting the computer with this device. It can also be installed virtually in a VM. In both cases, nothing is changed on the computer during the tryout. If I had to suggest a trial distribution, I would choose Linux Mint. It is based on Ubuntu, which is among the most widespread distributions, but adds what most people initially install. It is designed to be easy to use.
Even more curious? Here is a list of known Linux distributions.