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#21
You are free to power your PC how ever you want. There isn't any study or definitive proof that leaving it on is good or bad for the system.
I currently have two PCs. One is a HP 1aptop 15-dw0xx (W11) and the other is a fairly old HP Pavilion (W10).
With the laptop, I close the lid, and put it in hibernate, when I am not using it. I like this way because, when I open the lid and hit the power button, I'm ready to go in 15-20 seconds. The only time I reboot is when there is a update available. Currently, there is a update (kb5036980) waiting to be downloaded/installed. When convenient, I will download/install the update and reboot.
The HP Pavilion stays on all the time. It's been running 24/7 for about 8 or 9 years. I let any updates be installed, as they come. I use a wireless mouse and keyboard with this PC. When I am done working with it, I just turn off the mouse and keyboard. In a little while, the monitor will blank, all by itself. To start up again, I just power on the mouse and keyboard and hit the escape key. Everything is ready to go.
There will be a lot of users that will say they keep their PC running all the time and never had a problem. Or vise versa. But a sampling of one or two is pretty useless. Before I retired (2011), I was the lead Unix administrator for a very large company, for over 20 years. There were only about 5 or 6 of us to take care of around 600 Unix systems. There was an equal amount of PCs running some version of Windows. The Unix systems were a mixture of Sparc and x86 devices. All systems were left running 24/7. Many of the important servers were protected by a UPS system, with automatic switch over and diesel generator.
Over those 20 years of service, I can only remember 2 or 3 systems going down due to burnout. Mostly, systems were replaced/updated simply because they were old. Some were pretty slow, but supported programs that were still partially active. I remember having to dig up a old Sun 1E VME system (Sun 3 - 68000 based) for a program that included "spare boards" for a foreign country's radar processor. The program itself was 20 years old, and ran when was on assignment in another country. It took me a month of scrounging (the company had around 1,000,000 sq ft.) storage areas and checking old 9-track tapes, to dig up the old software and hardware and get everything working again. But when I got it all together, it all still worked. The company made a bundle supplying spare boards for the foreign system. The program manager got a lot of "atta boys" for pulling it off. But for me, it was just part of my job.