You can't believe what most people say on airsoft forums about camo, they're emotionally invested in their purchases, same as phone OSs and everything else. Most of the advice is regurgitated from being read on other airsoft forums and passed on through 10 gens of players with the original info coming from kevin down the pub who was gonna join the TA but 'decided against it' (too fat).
Look at your site pics in summer and winter, wet and dry, find the dominant colours and match as best you can; assuming you don't just wanna wear MC Black or whatever. Over the years I've come to a very rough rule that if you can have 4 uniforms of the common military style you'll be fairly well sorted almost everywhere you go in Europe, these are some reasonably obtainable/practical examples as of 2022:
Dark green (very heavily vegetated woodlands with little floor vis) - US Woodland, Temperate DPM, Tigerstripe, MC Trop, Ranger Green
Light green (ground is most covered in standard grass plants) - Multicam+family, AOR2, Concamo, Tropical DPM
Dark brown (probably most common, soil is brown) - Temperate MARPAT, Flecktarn, Coyote Brown, Concamo Brown
Light brown (dead leaves on the ground when dry) - Desert DPM, AOR1/Desert MARPAT/NWUII, Desert Tigerstripe, US 3 Color Desert
Obviously there's a billion caveats, there's in-betweens, variances in batches, variances between mil surp and commercial stuff like mil-tec, there's at least dozens if not hundreds of variants of just Tigerstripe and none of this takes in to account different garment types like softshells or GTX etc etc etc...
I always liked this image I got at a game as a good example of the 4th category. Typical English woodland but DPM would be shit here. I looked up pics from the site's facebook page in advance and chose accordingly; should've gone full AOR1 if anything.
I think GreenZone and ATACS-iX could maybe be considered quite well rounded as multi-area patterns for UK woods much of the year and the design technology advancement in them vs the '80s movie' families (US Wood, DPM, CCE etc) is clear. But Multicam has the most consistent results all around in my observation, which obviously lines up with its' mass adoption around the world - part of that is because it's cheaper to issue 1 set of course.