IMO, when choosing a computer appliance, one should compare CPU's, as processing speed counts: 716 MHz (Linksys) vs 1.7 GHz (Synology).
Wifi coverage is also important....1500 sft for one and 3000 sft for the other.
Wifi speed is also important....2.2 Gbps for one and 2.53 Gbps for the other.
For the record, I use my Synology RT2600AC as a stand alone router and additional mesh routers (MR2200AC) will be added to expand my wifi signal (I moved recently and still unpacking boxes).
Of course VPN capabilities is a huge plus for us that guard our privacy and it is nice to connect a hard drive to the modem--a very affordable NAS setup.
Yep, lots of options out there! Just do your research and ask your favorite nerd buddy for their opinion.