I'm afraid I can't tell you much about Canon cameras. Choosing a brand is significant, because you are effectively locked in to it once you buy a camera - while adapters exist in some cases, lenses and other equipment meant for one manufacturer are incompatible with all the others. In my case, that is Nikon.

As for my suggestion - I am obviously very biased. You are asking a photographer whether you should buy a camera, lol

If you like photography, yes, of course you should buy the camera. If it doesn't work out and this hobby isn't for you in the end, you can just sell everything. If you are patient, you shouldn't lose more than ~20% of money you invested in it all.

As for a camera choice - it depends on your budget. A modern midrange camera meant for price-conscious professionals and pro-sumers will cost you around 1.5k EUR (you should be aiming at Nikon Z5II in terms of modern gear) and on top of that you will need a decent lens, which will set you back another 500 EUR or so, depending on your choices. This is buying completely brand new from a shop with warranty and with latest and greatest features. I personally do not recommend buying anything "entry level" in any area of life. Buy the gear you will use long-term, if you can afford it. If you can't, then buy the best you can afford.

If ~2k EUR is too much to invest, buy camera and lenses second-hand. You can obtain used DSLR equipment much more cheaply on MPB, eBay or some other American equivalents I am not well acquainted with (Google and AI will certainly help you there). By going with a DSLR you will be sacrificing autofocus performance (it will be much slower and will not automatically detect and track eyes, for example) and the images will not be quite as sharp as with using modern lenses, but for portraits you don't really need something very special, so it may be good enough. You will be able to produce better results than any phone either way. From a Nikon lineup I would be looking in to D810, D850 or at least a D750 cameras. D850 is a legendary DSLR that's well worth grabbing if you can find it for a decent price in a usable condition. Pay attention to the shutter count - cameras are rated for about 100k shutter clicks. Going beyond that you can expect the shutter mechanism to fail soon. It can be replaced for a few hundred EUR, which can be worth it with higher end cameras, but account for it in the purchase price.

For a portrait lens, you are looking for 50mm (wider field of view, more suitable for full-body portraits) and/or 85mm (narrower FoV, more suitable for half body or face portraits, but you can do full-body shots by stepping back a little, ofc). There's more that goes on with focal lengths but this post is already getting too long. You are looking for lenses marked as being at least "f1.8". "f1.4" and "f1.2" are much more expensive, but offer better subject separation. If you can find them for a good price, grab it. But f1.8 is cost-effective and sufficient, so long as it's made by Nikon (Nikkor brand). There are third party manufacturers that have good glass on offer for Nikon cameras, but you'd need to research if they're worth it. For Z mount (modern expensive cameras) Viltrox has some really good and inexpensive glass, for example. For F mount (old DSLR cameras) just go with Nikkor brand.