Indeed the EA8500 mentioned by omelet and csc3 are EOLed. It was released in April 2014 (as a high end model) and the last FW release was in March 2019.
https://downloads.linksys.com/suppo...A8500_1.1.9.192968_Customer_Release_Notes.txt
To Linksys standard, it is not bad actually to have the FW updates for about 5 years. And it is actually supported by OpenWRT so people can install OpenWRT to extend the life.
https://openwrt.org/toh/linksys/ea8500
My Linksys WRT1900AC v1 was released in April 2014 (kind of flagship model at that time) and the last FW release was in April 2018.
https://downloads.linksys.com/downl...00AC_Customer_Release_Notes_1.1.10.187766.txt
I think it is quite normal for the average consumer router companies to act like this, with the exception of Asus which still provide the support to RT-AC68U which was released in Oct 2013. Relatively "short-life" product from Asus is RT-AC87U which was released in Nov 2014 and the last FW was in May 2021 (roughly 6.5 years).
I tend to think Linksys HW/FW were solid -- I have the WRT1900AC and EA7500 V2 myself. FW feature may be more limited compared to Asus but still get the job done. WRT1900AC was my main router from April 2014 to Sept 2020 (for 6.5 years). Both are supported by OpenWRT and I have flashed OpenWRT FW to extend the life of them.
BTW, main feature missing from the Velop/MR series is the Singtel VLAN support (only relevant to Singtel ONT users).