The Grape Solar GS-STAR-200W which are 'endorsed' by AM Solar for RV applications are heavily marketed for off-grid 'residential' and utility applications. Those are currently available as an 'expansion kit' (panel + a few cables) through Home Depot at a cost of $0.95/W (delivered price from my local store, YMMV).
As I've been researching nominal 12volt system PV panels, both rigid and flexible, that might be suitable for application on a 5.0TA I've been maintaining a spreadsheet with specs / characteristics of interest; Go Power, Renology, Lensun, Grape Solar, etc, etc; a quick scan of my $/W column shows values ranging from $0.95 to $2.35 and up, with more than a few in the $1.00-$1.15/W range.
Another FWIW, forum member jphil23462 chose the 'residential' Canadian Solar CS1H325MS panels for his 24-volt 5.0TA project (look for his 'Olive Modifications' thread).
IMO if you find a panel with the physical, electrical, and warranty characteristics that meet your goals, they're 'fair game' for consideration, just be thorough in the characteristics you consider, including how those relate to the 'companion' controller(s) under consideration and their ability to translate to useful battery charging for your system.
Methinks that when you run across a 'for RV' tagline on these things that's often just a marketing strategy, not particularly a reflection of a unique tangible characteristic. Having said that, personally I do find some comfort in specific product 'recommendations' from reputable vendors like AM Solar which target the RV market application. YMMV.