HEVC (H.265) is only used in germany for DVB-T2 (all other countries do use H.264). And DVB-T2 is not in widely use (even DVB-T was a failed product). I guess the only users of DVB-T2 are campers.
(edit: Currently DVB-T2 is only free for open senders (ARD, ZDF, senders which are paid by the "Rundfunkbeitrag", the rest costs money. it's not in wide use and probably never will Astra Sat / Eutelsat or cable (DVB-S2/DVB-C which all only use H.264) is probably the way which most people go, after the DVB-T debacle. And heck even than H.264/H.265 is implemented by DVB-T2 vendors but DVB-T2 does not need H.264/H.265 it can be used with AV1 aswell.)
(edit: Currently DVB-T2 is only free for open senders (ARD, ZDF, senders which are paid by the "Rundfunkbeitrag", the rest costs money. it's not in wide use and probably never will Astra Sat / Eutelsat or cable (DVB-S2/DVB-C which all only use H.264) is probably the way which most people go, after the DVB-T debacle. And heck even than H.264/H.265 is implemented by DVB-T2 vendors but DVB-T2 does not need H.264/H.265 it can be used with AV1 aswell.)