I have a Retrotink 4k. I mostly use it for VHS transfer these days, but it's original purpose is upscaling retro game images and applying various masks and filters to make the game look like it's using a CRT on a modern display.
It works beautifully, and you no longer need a clunky, heavy, dying CRT. I'm sure the purists will say it's not the same, but I've done sides by side comparisons IRL and it's good enough for me even when pixel peeping. I prefer the emulated CRT look on a modern OLED to the real thing these days.
I started playing Policenauts recently, and when I first booted the game I was straining my eyes trying to read the blocky pixelated text. I only recently started using RetroArch, but I did some digging and figured out how to enable a CRT filter and immediately it was 1000% easier on my eyes.
The anime art and FMV sequences looked way better too.
Not OP but I assume "VHS Transfer" meant "transfer to a digital format" i.e. digitize. The Retrotink is a fancy "composite/component/vga-to-hdmi" box, so you can do: VCR playing a VHS -> Retrotink -> HDMI capture card -> computer saving that to a file.
To properly capture VHS you need something called a TBC. Most have died over the years and the ones that are left are either very expensive or dying as caps fail. A TBC that was once considered low end commonly sells for $1k+ today.
The retrotink can do most of what a TBC does and it's a modern device you can actually buy for a reasonable price. It can also upscale and deinterlace for you in the process saving a ton of work later. The serious archivist would scoff, but it's good enough for home movies, and I would argue that it introduces less noise than 30 year old professional equipment with dying caps.
I do something like this for my old game consoles, except that I pipe them trough an old analog video capture card that supports 240p60 and use the video processing module in Retroarch to do the capture with minimal lag. After adding some fancy CRT shaders and other image adjustment carefully tailored for this, the image comes out looking great! I sometimes toggle the shaders off and wince at the "raw" digital capture. I actually bought this capture card back in 2008 for this purpose but detested using it until around 2018 when I started using it in conjunction with retroarch and CRT shaders.
For that period it even shaped my perception that analog video and specially n64 graphics were always bad, but all that was vindicated by those shaders, it really does make a big difference, and made me find a new appreciation for n64 graphics in particular.
There is some internet misconception that the inherently "blurry" output of an n64 is bad (And sure, some games are just ugly/bad from an artistic standpoint), but it's actually the smoothest image any analog console will ever produce when hooked up to a proper CRT or CRT shader, and it's consistent across all games because of "forced" high quality AA in all games. Even the next generation of consoles seldomly used AA.
It works beautifully, and you no longer need a clunky, heavy, dying CRT. I'm sure the purists will say it's not the same, but I've done sides by side comparisons IRL and it's good enough for me even when pixel peeping. I prefer the emulated CRT look on a modern OLED to the real thing these days.