I have experienced this first hand when as a poor we used our monitor as a TV and I being a stubborn kid didn't let go off the monitor so my Mom could watch movies with the Hostel kids and she ended up crying because .... . That memory is too sharp in my head that I ask people coming to look for a console or even making a PC that do you already have a secondoary TV or monitor at home and if you don't have it, give your house a cheap TV if you only have one display at home. They are not that expensive.
So, I guess what I want to say is if you are going to buy a console that doens't have it's own display, get another display and don't just hook it to your TV especially if other people in the house use the old TV for anything at all.
Otherwise you can just buy a handheld console from below and also a projector with a normal console(Yes, I have to explore this in more details later).

After getting the chinese clones of the retro consoles I finally have started to see the value in getting
consoles directly from the manufacturer such as Anerbnic or Powkiddy.
It might be a bit extra than getting a chinese clone of the same form factor or spec but it's so much more
better to get these directly.
The Chinese Consoles are fragile, not well built and start to show sign of bad parts in a few months
itself, that is if you even get a working unit or a unit at all.
Note: You get a refund if those things happen to you as already explained here for Alibaba and is the same for Aliexpress.
I have a small R36S(smaller than a normal phone now), an R36Pro(a phone size but very thick) and R46S(almost a
phone size but wider and bit thicker).
And I have them in the drawer which I open before I leave for any place and I only pickup the R36S due to
it's smaller size and that is pretty important to understand.
People think getting a bigger 9" Legion Go or Steam Deck or something huge will help them play a lot of
games if they are using these on the go but it's simply not comfortable enough to do so in terms of moving
around.
On my bus jorneys and train journeys I tend to pickup something usually smaller than a phone(open or even
closed if it's a flip) and that matters.
If you're new to this, stick to smaller devices first because you will actually use them more instead of a
larger device that's at home.